Don't forget this gift for the girl who's always forgetting her keys. The Wireless Key Finder provides you with a small colored ring for your keychain. When the keys disappear, you press the button on the main transmitter and listen for the loud beeping. The Wireless Key Finder can sound its alarm from as far as 60 feet away. It works through walls, floors, and yes -- even sofa cushions.
The device comes with two separate receivers, so you can attach the extra one to anything else regularly lost (except for maybe your sanity).