The Iron Man Mark V armored suitcase is a 1/4 scale replica and mobile power pack. It's able to charge two USB devices simultaneously and has 12,000mAh of power. I would have loved to have this at Comic-Con as I'd run out of power before the end of the day. Power and an Iron Man prop replica, what more could you ask for? Available for $99 at Think Geek.
Hat tip: Ohgizmo