Oh. My. God. This is the coolest keychain I HAVE EVER SEEN. Kudos to the folks at Thinkgeek for coming up with such a BRILLIANT idea!
The Back to the Future Flux Capacitor Light Up Keychain shrinks down one of your favorite devices for making time travel possible and lets you hook it right on your keychain. No plutonium needed – this sucker is electrical. Light up your keychain with hottest new invention this side of Hill Valley.