Answer: It's a perfume diffuser. You can spray your perfume on it, and it will absorb it and release the smell into the air.

Answer: It is a cold box.

Answer: Chicken steamer, it's used to add humidity to the house.

Answer: HPDFCU Ultrasonic Animal Deterrent.

Answer: It’s an avocado slicer. You cut the avocado in half and seed it, then scoop out slices.

Answer: This is a mushroom growing in the ceiling and is likely the result of water damage from the floor above.

Answer: Part of an old telephone. The bell is for incoming calls. The crank is to buzz the operator to connect you to the other party.

Answer: Worked at a Ponderosa back in my teens as a line cook and we had one of these. When an order was up we would press a button on a box and it would light up a number, so a server would know their order was ready for a table.

Answer: It's a window breaker for car windows.

Answer: A leather fishing belt. You can put the end of the fishing rod in the hole for support.

Answer: It's a phone “booth.” At one point it likely held a phone (likely a payphone). You could stand it in, have your call, and not be in the middle of the hallway.

Answer: It's a button hook.

Answer: Boards that keep stray dogs from peeing on the door.

Answer: Basically there are huge underground tunnels that take water to the power plants, these gates shut the water to them.

Answer: These are old kilns.

Answer: It’s for the manufacturing of the product so that it can be turned while standing up.

Answer: This is used to measure the height of the net in tennis.

Answer: A cigarette lighter.

Answer: It’s for drafting. It’s an eraser shield.

Answer: It’s a baler! The metal bands have small metal prongs protitruding, they pick up the hay. The corkscrew in the back moves it into the baling chamber, where a ram compresses it into a bale, after that it’s tied together and pushed out of the machine.

Answer: Mirror guy here, there are lots of things related to the adhesive that can pull off or degrade the silver backing, including: forceful detachment of the adhesive which pulls off the silver, using an acid curing adhesive instead of a neutral curing adhesive, putting the adhesive onto unpainted Sheetrock which screws up the curing process, or drawing a closed shape with the adhesive so air gets trapped in it when the mirror is pressed against the wall.

Answer: It's one of a pair of "rattlesnake eggs". You hold them separated slightly in your hand, and toss them up in the air, and they make a cool noise when they magnetize together. That's about it.

Answer: It's a dry water massage bed. A person lays inside and water pummels them.

Answer: It is a space for a wireless pod that tracks your running workout called Nike+ sensor.

Answer: It’s a badger gate.

Answer: This happens a lot in seawater. You see it in the beach all the time as a thick brownish foam. Basically, as marine creatures and so on (especially algae) decompose after death their bodies break down into various components. One of the processes is called saponification and basically converts fats into soap (fun fact, the same thing can happen to un-preserved humans). This coats the sand, gravel, rocks etc and then it is stirred up into foam by the water and (usually) high winds. On the beach it’s usually a mix of these animal byproducts, sand and other contaminants, it’s likely similar here but with less sand. In a canal it is likely stirred up by the wake of watercraft.

Answer: Guide rails for keeping a derailed car from getting too off center.

Answer: Linen press.

Answer: It’s a home observatory. The telescope inside doesn’t have to be particularly big, but chances are if they spent the money on the dome they have a pretty nice scope.

Answer: Looks like the membrane from a kazoo.

Answer: An old blade honer/sharpener.

Answer: An oil lamp.

Answer: A tick removal tool. It's called a "tick twister".

Answer: A holder for moth balls, called "mortemoth".

Answer: A Hoosier flour sifter. The flour is contained in a box above or in this case - the conical bag and you crank out what you need below.

Answer: This is a ULV mosquito adulticiding fogger.

Answer: It's a chair, howdah style.

Answer: Old septic tank.

Answer: These are Japanese folding screen weights.

Answer: It's a tooth pick in a design patented in 1881.

Answer: It’s a keyboard key remover. It’s to help install custom keys but if it didn’t come with any custom keys, they probably gave it to you to help you remove all the keys to make cleaning easier.

Answer: They're measuring wifi strength and saturation as part of MLB's deal with Extreme Networks.

Answer: It’s for laptop/tablet storage while charging.

Answer: A wagon brake.

Answer: It is a phone holder.

Answer: They are granaries, for corn and grain.

Answer: Saildrone.

Answer: Knife rests.

Answer: It's a vintage police restraint chain called "chain nipper".

Answer: It's a temperature sensor for a humidifier.

Answer: It's part of a cream separator for milk.

Answer: This is a seafood or cocktail fork.

Answer: A ball mill. Similar in concept to a rock tumbler, but used by industry to powderize or smooth materials.

Answer: It's a lazy dog. A small bomb dropped in large numbers. No explosives in it.

Answer: Hydraulic fluid reservoir for a military vehicle, possibly a hercules.

Answer: Carpenter Bee traps.

Answer: A display for hats.

Answer: A pull pin from a fire extinguisher.

Answer: Looks like a it’s maybe a flagpole finial, possibly 19th century or early twentieth.

Answer: YVW Water Watchers! Initiative to remind children to conserve water when possible. This is insanely clever. The Hawthorne effect is when people behave differently when they know or feel like they’re being watched—choosing a healthier meal at lunch with your fit friends, or being more productive at work when you sit near the boss’s office.

Answer: It's for holding books.

Answer: It’s a spoon rest for cooking so your counter top doesn’t get dirty. Can hold multiple utensils at once. Easy to wash and clean.

Answer: It’s a sensor to turn the heated sidewalk on and off.

Answer: A wash tamper or "wasstamper" in Dutch.

Answer: It’s a pull chain and hanging bracket for a solid door bell.

Answer: It's an infrared based occupancy sensor. The TV controller is outputting an infrared signal activating the sensor.

Source: husband who is an electrical engineer.

Answer: It’s a manual massage roller ball.

Answer: It's a container for keeping herbs fresh in your refrigerator.

Answer: It is an outrigger for trolling. you attach a long line to it and this carries it out away from the side of the boat so you can put out two long lines at once. Used for tuna and swordfish in the gulf stream.

Answer: A rotisserie clamp.

Answer: That is a paddle designed to swat back a small ball 'a hornet' in the traditional swiss sport or hornussen.

Answer: A vintage craftsman wet wheel sharpening stone tool.

Answer: Sonde device to measure pipe blockage / delineation using acoustic waves.

Answer: They are anti theft strips and will sound the alarm if you try to pass the detectors at the door when not having paid the item.

Answer: It’s a comb hammer for dressing stone.

Answer: It's a back support.

Answer: It's a foldable flying disk.

Answer: A hanger cover. It's to prevent suits or similar from getting a crease when hanging on a hanger with sharp angles.

Answer: Mk 25 marine location marker.