23 Mystery Objects That Left the Internet Stumped

At first glance, these objects seem to make no sense at all — strange shapes, baffling purposes, and a few that look downright puzzling. But every one has a perfectly good explanation. Scroll through, take your best guess, then find out what each one really is.

Mystery 01 · Solved

“Mixer? Back massager? Mounted on a cabin wall in Hood River, OR. Two handles spin the seven arms, and the wooden balls spin freely.”

A wall-mounted device with spinning arms and wooden balls
Identified

It’s a rope winder. Each head holds a length of twine, and spinning them twists the strands together into rope.

Mystery 02 · Solved

“Found under my couch. The container opens, has four holes on the bottom, and shakes out a green powder that smells like menthol or cleaner. About 1 inch by half an inch.”

A small container with green powder inside
Identified

It’s most likely a disc from a toothbrush holder or sanitizer, the kind that keeps a brush head clean.

Mystery 03 · Solved

“Listed in an online estate auction as a ‘toaster’??”

A small toaster-shaped object
Identified

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It’s actually a salt and pepper shaker set, shaped like a little toaster.

Mystery 04 · Solved

“Found at a thrift shop, marked as an unknown tool. About 7 inches long.”

A pointed unknown tool
Identified

It’s a splicing fid — a tool used to weave and separate rope strands when making splices.

Mystery 05 · Solved

“A wooden chute covered with beams, near Durango, Colorado.”

A timber-covered water channel in the mountains
Identified

It’s a timber-supported channel that carries water from Cascade Creek about 15 miles downstream into Electra Lake.

Mystery 06 · Solved

“Weird blue goo that appeared overnight. I’ve googled it and can’t figure it out — maybe eggs?”

A strange blue substance
Identified

Most likely bird droppings. Birds that feed on blue-toned berries — like those from a lillipilli tree — often leave behind strange purple-blue messes.

Mystery 07 · Solved

“Found stuck to the back of my husband’s rearview mirror, placed diagonally and, as he put it, ‘not professionally.'”

A small flat electronic tag
Identified

It’s a long-range RFID tag — the kind used for things like toll payment, garage access, or asset tracking. Nothing sinister about it.

Mystery 08 · Solved

“Found this dripping some weird liquid. Any idea what it is?”

A foamy substance on a plant stem
Identified

It’s the work of spittlebugs — insects that produce that foamy, frothy liquid to protect themselves while feeding on plants.

Mystery 09 · Solved

“Rotating drums that the river passes through.”

Rotating drums in a river
Identified

In the Pacific Northwest, similar rotating drums are used to count fish — often young salmon making their way out to the ocean.

Mystery 10 · Solved

“A circular metal object about 5 cm wide, silver, non-magnetic, weighing 70 grams. No writing. Found in Ontario, Canada.”

A four-leaf clover shaped metal object
Identified

It looks like a four-leaf clover “cape fastener,” which usually has chains attached — probably from a large coat, judging by the size.

Mystery 11 · Solved

“A ceramic crab with a hole in the top, sitting in an attached dish with a straw. No markings, probably pre-1970s.”

A ceramic crab with a small dish
Identified

It’s a porcelain crab water dropper, traditionally used to add small amounts of water when grinding ink for calligraphy.

Mystery 12 · Solved

“What is this ceramic tube? Found in a drawer of random antique bits. I think they were white once, discolored with age, and the holes go all the way through.”

An old ceramic tube with holes
Identified

These are the ceramic tubes from old knob-and-tube wiring, an early method of running electrical wires through buildings.

Mystery 13 · Solved

“Found these holes on a hike in the middle of nowhere. What are they from?”

Drilled holes in rock
Identified

They’re likely core samples taken for geology studies.

Mystery 14 · Solved

“Handle-like objects made of glass or epoxy. Looks like they fit onto a rod. Found in my grandparents’ cabinet, where they’ve been for ages.”

Glass or epoxy handle-like objects
Identified

They’re just drawer pulls, likely from a vanity or an old piece of furniture.

Mystery 15 · Solved

“Found this in my pocket. Probably nothing, but I have no idea how it got there.”

A small threaded plastic fitting
Identified

It has a Luer lock fitting, the type found on medical items like IV lines and syringes. The same connector also shows up in things like printer-ink refilling.

Mystery 16 · Solved

“Found this while cleaning out an apartment. It’s quite heavy and not sharp.”

A heavy ornamental metal object
Identified

It’s an ornamental or ceremonial “sword breaker” — a decorative martial-arts style piece rather than a functional weapon.

Mystery 17 · Solved

“A random TV channel we found?”

A TV screen showing a signal readout
Identified

It’s a signal monitor, likely set up by a technician troubleshooting cable issues. Tuning to that channel lets them check the signal quality at different homes along the line.

Mystery 18 · Solved

“What’s the difference between the two buttons on the last two rows? Both open and close the elevator door the same way. New Mexico, USA.”

An elevator button panel
Identified

One controls the front door and the other the rear. The first floor has two doors, which is why you’ll see both “1” and “1R” on the panel.

Mystery 19 · Solved

“Two chrome balls that move up and down. Seen in Berlin, Germany, on the Ministry of Economy and Energy building.”

Two chrome balls on a building
Identified

They’re likely part of a clock — a sculptural design where the moving balls track the time, similar to versions found in other cities.

Mystery 20 · Solved

“What is this foldy metal thing attached to the side of my back porch?”

A folding metal device on a porch
Identified

It’s most likely a can crusher — pull the lever and the metal panel presses down to flatten cans.

Mystery 21 · Solved

“Every house on this road has a chain-like series of cups under the corners of their gutters. I’m guessing it’s for rainwater — but what is it and how does it work?”

A chain of small cups under a gutter
Identified

It’s a rain chain — a decorative alternative to a downspout that guides rainwater down the chain and into the ground or a basin.

Mystery 22 · Solved

“What was this metal box used for? (matchbox included for scale.)”

An old metal box next to a matchbox
Identified

It’s an old German ammunition box.

Mystery 23 · Solved

“Two of these buildings on a lot where new housing is about to be built.”

Two tall narrow structures on stilts
Identified

They’re bat houses, built to give bats a place to roost.

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