Revamp that old, boring keychain with a sweet novelty addition. How about an ear? Yeah, an ear. Like an ear ring. Or a Bee-Otch keychain from that awesome Transformers movie? Keychains are a great way to personalize your keys so that when you lose them at a drunken party you can call the next day and say "Hey dude, did you find the keys with the ear attached?" They will know exactly which ones they are.