This "pristine" 1938 edition of this comic book set a record when it was auctioned off in 2014 for the highest amount ever paid for a comic book on eBay. Why all the uproar? There are less than 50 copies of this comic book in existence.

Oh, the 1980s. The surreal world wide web is the perfect home for the equally surreal Garbage Pail Kids collector cards, where a card like "Adam Bomb" can fetch up to $1,000. They may be worth even more if they are in their original packaging!

An original hand-drawn oil cloth edition of Monopoly created in 1933 and once possessed by the game's creator Charles Darrow sold at Sotheby's auction house in 2011 for $146,500, more than double what it was anticipated to sell for.

Depending on your Raggedy Ann's age, selling it can get you more than $1,000. Currently, the asking price for the set in the picture on eBay is over $4,500!

These interactive, fuzzy toys first appeared on the market in 1998. The toy could sell for nearly $900 if you have an early edition in its original packaging.

Get that old Kermit the Frog doll out of the attic. Currently, the asking price for this 1976 Jim Henson used toy is nearly $2,500 on eBay.

J.K. Rowling's book, which started the Harry Potter mania, was initially released in the United States in 1998. First copies of "Harry Potter And The Sorcerer's Stone" have gone for as much as $6,500.

This innovative toy was created in 1964. The four terrifying tales included are Frankenstein, Dracula, Creature from the Black Lagoon, and The Curse of the Werewolf. Oh, and the price is a swanky $25,000! You can literally buy a new car with this amount.

Although Barbie has undergone various changes, some collectors will forever prefer the original 1959 model. Originals start at around $8,000 and come with zebra-striped bikinis and sweeping updos.

Cabbage Patch Kids, introduced by Xavier Roberts in 1978, are adored by doll collectors. The world's most devoted Cabbage Patch doll collectors, Pat and Joe Prosey, have accumulated over 5,000 dolls that they keep in a specially constructed museum in Maryland. By the way, you can purchase them for as little as $360,000!

To give those old 3D photos new life, Mattel's venerable View-Master, the stereoscopic photo viewer that children are accustomed to, is now utilizing Google Cardboard Virtual Reality technology. However, oh, how we loved those tiny slide projectors from years ago! Some still fetch high prices, reaching up to $1000 on eBay.

Who could ever forget this adored extra-terrestrial from the 1982 film? If you were fortunate enough to get the 38-inch-tall “life-size” E.T. toy back in the day, it might now be worth between $700 and $900.

You already know that your Beanie Babies are worth far more now than they were in the 1990s, right? Claude the Crab is one of the most valuable ones. On eBay, the 1996 plushie is currently priced at $10,200.

Sugar addicts will be ecstatic to learn that even an ancient PEZ dispenser might one day be valuable. The Astronaut B dispenser, designed for the 1982 World's Fair, garnered a huge sum in 2006 when it sold on eBay for $32,000. The 1955 Santa Claus Head dispenser, the PEZ pistol, and the Mickey Mouse Soft Head dispenser are some other very valuable dispensers from PEZ.

A 1963 first edition of the well-known children's book autographed by Maurice Sendak sold for $25K on Abebooks.com in 2012. The book's condition was particularly impressive because, as all parents are all too familiar with, picture books rarely last without any tears, smudges, or stains.

Apparently, there's just one set of Barbie and Ken dolls that has Ken rocking a beard! Once again, a very valuable error for someone's pocket. Currently, this error set is priced at a whopping $100,000!

This 1967 toy allowed children to create glowing artwork by inserting tiny, colorful plastic pegs into a lit board. Today, this collectible may be priced anywhere from $100 to $1000. The one in the picture is currently listed at $159.99 on eBay.

In 1949, The Lego Group started making interlocking toy bricks. Since then, it has created LEGO kits with a range of themes that are enjoyable for both children and adults. Some of the most expensive LEGO sets, like the life-size Captain Rex in the picture, may be priced as high as $20,000.

Rare findings can be worth hundreds of dollars, yet most of these palm-sized autos sell for only a few dollars. The 1969 "Volkswagen Beach Bomb" prototype, which had wheels too big for Mattel's race tracks and surfboards hanging out the back window, is one of the most expensive. Because it was never mass-produced, collectors value it at about $150,000.

Vintage Fisher Price toys can be quite profitable if they are in pristine condition. This 9-inch pull toy from 1936 brought in more than $8,000 in 2009, which is not bad considering it was initially sold for 50 cents.

Nintendo's handheld game system, which debuted in the United States in 1989, was how we passed the time before we became fixated on our smartphones. Nowadays, Game Boys may cost hundreds or even more, depending on the model and condition.

Pokemon trading cards, first released in Japan in 1996, have a tremendous fan base, and rare cards may fetch exorbitant sums. The Super Secret Battle No. 1 Trainer is undoubtedly one of the rarest Pokémon cards ever created, with just seven copies known to exist.

If you’re a millennial, you likely watched Toy Story as a child and possibly still have some of the toys in their boxes at your parent’s home. In fact, some of the key characters can fetch several hundred dollars today. Currently, Woody, Buzz, Jessie, Bullseye, Aliens, and the army men’s Signature Collection is priced at $20,000 on eBay.

When the Easy-Bake Oven first hit the market shortly before Christmas in 1963, practically every child pleaded for one. With a then-in-vogue pale yellow or teal tint, it was designed to resemble kitchens from the 1960s. Apparently, the one in the picture box has been sold for around $150.

Nigo, the A Bathing Ape designer and creator from Japan, resorted to Sotheby's to sell his Star Wars collection. A brand-new boxed Luke Skywalker figurine, one of just 20 available, was included in the 2015 auction. The total haul came to over $500,000.

Another Beanie Baby that can potentially bring in serious cash is Valentino the Bear. Even a 1993 bear with errors and a misspelling on the tag may get $18,000 on eBay.

Because toys have been included in McDonald's Happy Meals since 1979, it's no surprise that a cult of collectors has developed around these little toys. On the marketplace, you may discover various collections, such as Barbies valued at $115, some transforming toys from 1987 and 1989 called “Changeables,” currently valued at $70 each, or Disney-themed figures priced at roughly $1,000.

Simon, a game where you had to memorize the sequence of the colors on the gadget, was a favorite among competitive players since it could keep them occupied for hours. Nowadays, a vintage one can cost up to $200.

Good for you if you've kept your collection of marbles since some are now worth thousands of dollars. For instance, a 1926 set might fetch up to a whopping $1,500!

Although most date from your parents' rather than your own childhood, many VHS cassettes are now highly valuable. Hence, check your parents' VHS collection to see if there are any unique ones. However, more "recent" ones, for example, Walt Disney's Tarzan VHS tape from 2005, is currently listed for $150,018.00 on eBay.

Apparently, it came out that an urban legend about Atari burying hundreds of their gaming cartridges in the New Mexico desert in 1983 was confirmed. 881 recovered cartridges, in all, were sold for a total of $107,000. The most sought-after games on eBay can sell for hundreds of dollars each.

One of Nintendo's most adored games today sells for hundreds of dollars. Yet an authentic, sealed replica might cost as much as $10,000!

She-Ra, He-Man's twin sister, continues to be popular among collectors. Although individual action figures and accessories sell like hotcakes in the $150–$600 range, the original action figure in-box was priced at $4,000.

Since its release in 1964, G.I. Joe by Hasbro has been popular among a large contingent of collectors. The cost of vintage Joes and their accessories ranges widely. According to Mental Floss, a 1963 prototype of G.I. Joe "Toy Soldier" sold for $200,000 in 2003 on eBay.

Indeed, you may get a fortune if you can find your old Super Mario 2 Game Boy cartridge. Currently, the Super Mario 2 original game cartridge listing on eBay goes for a whopping $1,000,000.

This console from the 2000s has many game options, from Crazy Taxi to Super Mario. One is now available online for just over $200.

Bengali was undoubtedly one of the coolest ThunderCats. Even cooler is that this 1986 action figure that has never been played with is extremely expensive and is currently offered for nearly $2,000 on eBay.

Pogs were initially round cardboard inserts in milk caps that youngsters used to play a game of flipping with. If, by any chance, you keep the entire Marilyn Monroe collection in your attic, the pogs might bring you $1,000 today. Its rarity and the allure of the blonde actress have certainly increased its worth. The pogs in the picture, for example, are currently priced at $600.

If you were a child of the 1980s, you probably enjoyed the 1982 release of the Masters of the Universe series. Although everyone adored the lead character He-Man, Skeletor is the show’s real star; hence it deserves to be sold for top dollar. And well, that’s exactly the case. Currently, Skeletor’s figurine is priced at over $3,000 on eBay.

Due to a manufacturing blunder, just 2,000 of these royal blue "Peanut" elephants were created with a deeper hue than was planned. However, it is now the most valuable Beanie Baby and may fetch up to $5,000!

Who didn't love Strawberry Shortcake and all her cute companions with names related to desserts? The original dolls, introduced in the 1980s, are now worth between $100 and $500. The price may be even higher if they are still in their original packaging.

Vintage Star Wars merchandise may fetch some of the highest prices in the galaxy, given the enormous popularity of the series. One of the most well-known action figures from the movies is the bounty hunter Boba Fett. Mint, in-box versions may bring the cost up to $32,000.

Certain Gundam Robots are extremely rare. Apparently, at an estimated price of $250,000, the Gundam Fix Platinum figurine was assembled with 78 platinum parts and studded with a real 0.15-carat diamond on its head. Still, less blingy versions can also earn quite a buck. The one in the picture has apparently been sold for $1,246.35.

Water battles were revolutionized with Super Soakers, and demand for these vividly colored water cannons is still high. You may profit well if you sell your Soaker at the right moment. Versions from the 1990s might cost as much as $500.

These adorable creatures came in various colors, personalities, and patterns. You may be making a ton of money depending on whatever kind you've preserved. While less costly variants of the more popular models are available, rarer Trolls, like this gold glitter variation, can sell for hundreds, close to a thousand, of dollars.

Keeping up with all the bopping, twisting, and flicking in this amusing game wasn't easy. And today, getting your hands on one is even more challenging, which is why private sellers are asking between $200 and $300 for it.

If you've ever played with a Skip It, you are familiar with the agony of hurting your ankle. Ouch! Still, back in the day, this one could keep you occupied outside for several hours, which is very unlikely for modern generations. Depending on the age of the model you hold, you can currently buy it online for anywhere between $100 and $300.

Before Pet Society and Pou, there were Tamagotchis. Who could possibly forget attempting to care for this small digital pet? Although Tamagotchis may be obtained cheaper, antique or limited edition models cost hundreds of dollars.

You're looking for Polly Pockets from before 1998 here. At this time, they were tiny (and probably a choking hazard). How much money you could make selling Polly Pockets depends on several factors, including how well-kept the items are. Still, the Lucy & Polly's Dream Cottage House in the picture is currently listed for a whopping $6,000 on eBay.

Many of us have great recollections of playing that Blue Eyes White Dragon against an opponent on the playground or swapping that Dark Magician card for an Egyptian God card. Therefore, it comes as no surprise that Yu-Gi-Oh has so many nostalgia cards. And as we already know, evoking a sense of nostalgia can earn you quite a buck. For example, the set in the picture is currently priced at $48,738.60 on eBay.

Rubik's Cubes have been sold over 350 million times and are easily obtained online for about $20. But, some companies and creators have gone above and beyond with this little puzzle, producing more complicated and pricey varieties than before. For example, this set of limited edition Invader cubes is currently priced at over $2,000 on eBay.

Of course, Batman necessitates his iconic vehicle. This 1970s vintage Batmobile is quite sought after today and costs around $900.

Consider yourself lucky if you received one of these limited-edition Buzz Lightyear figurines for Christmas in 1998. Nowadays, this figurine may be valued at $150 to $500.

When these green-shelled heroes initially appeared as comic book characters in 1984, soon almost every children's birthday party had a Teenage Turtles theme, and many action figures were given as gifts. Today, these figurines may sell for $400 to $900, with more valuable models costing thousands.

It's hardly surprising that vintage Colorforms, with their vibrant backgrounds and reusable stickers, are in demand, given the current appeal of adult coloring books. These may fetch as much as $700.

After an anime series and computer game were released, these virtual monsters acquired popularity. Digimon cards are now valuable collectibles; even today, copies in mint condition may sell for well over $100.

It makes sense that the classic railroad sets from the adored brand fetch high prices when you combine two things about which people are fervently enthusiastic — Lego and trains. Today, these LEGO train kits may cost anywhere between $400 and $1,000.

Your collection might be worth a lot of money now if you enjoyed playing this fantasy card game as a child. Rare individual cards like the Alpha "Black Lotus" have sold for as much as $87K, and collections have brought in tens of thousands of dollars.

Who would have thought My Little Pony would cost that much? These colorful small figurines are now very expensive, especially vintage ones. Although sets like the one in the image may cost up to $6,000, unusual findings can fetch considerably higher prices.

As Molly from The Big Comfy Couch demonstrated in the 1990s, not all clowns are terrifying. If you still possess this Molly plush doll, you can sell it for up to $250.

Everyone speaks about Barbie, but Skipper, her younger sister, is just as noteworthy. Currently, the vintage Barbie Skipper Ken doll set from 1991 costs nearly $700 on eBay.

These twins ruled the 2000s, and their dolls had equivalent success. These days, they are available online for about $200 (of course, as a set).

Baseball cards are still quite popular; many people love buying, selling, and collecting them. They also fall under the category of goods that seem to only increase in value through time.

No matter how old you are, there’s a Batman you admired (and probably had an action figure for). Apparently, this 1976 action figurine has been sold for nearly $800.00 on eBay.