Altoids iPod charger. Works with current gen iPods up to and including iPod Touch, iPhone, etc due to having 2.5v of power over each data line (required to charge newer iPods). Can post more pics if need be. Runs off of 4x NiMH AA batteries (which works out to 4.8v, close enough to USB spec's 5v, 4x Alkaline AA would work out to 6v, too much).
Edit - actually, I should be more general. Not just an iPod charger, but can charge any device that will charge over USB. I have charged Xbox controllers with it XD
EDIT - Silly me, I forgot to add my steam ID! sicklyboy - http://steamcommunity.com/id/sicklyboy/