Yesterday was my youngest son's 13th birthday, and he had a remote-controlled flying saucer we ordered at ThinkGeek. My son loves geeky gadgets and can spend hours on their website!
This little toy is actually a pretty cool piece of technology: it embeds 3 gyroscopic sensors to stabilize the flight by regulating the four propeller's rotation speed. Give it a few seconds to calibrate after switching it on, and here we go, flying around in the living room! The only one who doesn't love this toy is the cat, particularly when it suddently takes off close to him :-P