Levitron Omega Levitating Spinning Top

The American Association of Physics Teachers called the original Levitron "the best new science toy in a generation." This, the latest version, is so much more than a spinning top. As it spins (using only your finger-power, no batteries are required), it levitates above a magnetic pad, high enough for you to pass your hand under it, and is great fun for kids and adults alike.