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.

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.

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.

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.