Keyring Key - Sure, why not?

Want one less piece of metal jangling around in your pocket? Get one of these keys from Amron Experimental and ditch the keyring. It's one of those ideas that's so good it makes you feel stupid for not having thought of it. Sure, there are problems: that becomes the one key you can't remove from the others without causing a mess, there may be practical metal-strength problems, and so on. But just look at it, and tell me it doesn't feel right! Not bad.
[via Gizmodo]