Apple's 2nd generation iPod Shuffle clips on to anything, so why not make it multipurpose?
The guys at mophie recently unveiled , one of the sweetest keychains I've ever used. Besides being a shuffle holder, it doubles as a keychain, and triples as a bottle opener. Just pop out your Shuffle if you wanna uncap a cold one.
The durable, yet lightweight Bevy is made of a transparent polycarbonate and even has grooves in it so you can easily operate your Shuffle. It's a piece of cake to remove your Shuffle, and the Bevy barely adds any weight to the unit.
I met the mophie guys at iPhone Dev Camp in San Francisco. Their Illuminator project, which debuted at MacWorld '07, is moving to the iPhone. This app allows users to collaborate on ideas, move them into prototype, and eventually create shipable products. mophie is known for it's creative iPod cases.
Check out their site for more info