There's plenty of little flying remote-controlled vehicles like helicopters, planes & UFOs buzzing around homes and offices nowadays, but these all get airborne with the use of propellers. The WowWee FlyTech R/C Dragonfly is the world's first flying winged robot that can actually fly around indoors or outdoors simply by flapping its wings. This ought to drive the office cat here sufficiently crazy. Check out the demonstration video below to see it in action!
WowWee FlyTech R/C Dragonfly - World's First Flying Winged Robot