“Fish Hook”

Vendors in China have begun selling key chains that contain live fish.  So if you're in China and you can't find your keys, the cat took them.

A living fish is swimming in your keychain.  The idea is to make you feel better in case you ever drop your keys in the ocean.

Asked why they put tiny fish in carry-size tanks, the inventor said, “Because, if we put them in a little cage, they’d die.”