Lightahead Revolving Balance Balls in Perpetual Motion Decoration Asteroid (Multi Color) The Asteroid - Perpetual Motion is a piece of revolving art for your desk. This kinetic sculpture has several brightly colored metallic balls that rotate like a ferris wheel. The Kinetic Ferris Wheel start off slowly and builds up until it goes all the way around, using its own generated power to keep it going. It will keep you and anybody else who watches it mesmerized for hours. This classic desk toy makes a great office decoration or executive gift.