These miniature Atari 2600 joystick and paddle controllers function as both a keychain and a functional video game console. Certainly they’re a bit cumbersome as keychains, but you cannot deny the cool factor here.
I’ve seen differing information on which versions feature which games, but from what I can decipher, there are three versions, one with Asteroids and Millipede (joystick); and one with Yar’s Revenge and Centipede (joystick) and one with Breakout, Pong and Warlords (paddle).
Each controller runs on 3 AAA batteries and comes with a 6 foot RCA cable to connect to the composite video input on your TV or monitor. They’re available now for just $15 USD each from Fredflare.com.
P.S.: This post on AtariAge complains about the build quality and lack of authenticity of the games, but I still think it’s a cool idea.