I'm very interested in this Mophie Bevy Keychain Bottle Opener (http://www.ilounge.com/index.php/ipod/review/mophie-bevy-protective-case-with-earbud-wrap-key-chain-and-bottle-opener/), but am concerned about my shuffle falling out of it.

I'm not wanting it for protection as much as keeping my shuffle always with my keys. See, I already have enough stuff in my pockets, and I am using the shuffle as a flash drive to bring stuff back and forth to work. In this capacity, it seems perfect. My concern is that the case will not grip the shuffle as tight as it needs after repeated taking in and out.

If this case is not perfect, can anyone else suggest a product that will turn my shuffle into a key fob?