ScooterBots (10 pack). A battery-powered pulsating motor causes the individual bristles (or legs) to vibrate and shimmy, sending the bot scooting across any flat surface. Dozens of variables are possible. What happens if you trim or bend the bristles? Connect several bots together? Add stabilizing wire legs? A memorable way to teach principles of engineering and electric circuitry. Kit contains all you need to create these mini-marvels, including instructions.