I think it's time to dedicate a museum to all revered USB powered gadgets, perhaps a 'USB museum'. Another member that deserves a special corner in the midst of the weirdest of USB gadgets we encountered earlier is this USB powered shirt with built-in fans.

These USB powered air-conditioned clothes from Japan house 2 x 10cm fans to bring down body temperature of the wearer. Also, there are four AA batteries fitted with these half sleeve shirts to keep you cool by hooking to your car's cigarette socket.
Via: newlaunches