I think the original AirHogs were air powered but mostly batteries now.
http://www.airhogs.com/
There must be 100 different ones. Planes, ornithopters, heli's, gyros, zero-G cars..... wow.
Saw this one a few days back for the first time.
http://www.buyswitchblade.com/
Short duration no doubt but I'm impressed by their innovation.