Invasion of the Bristlebots comes with two mini-robots — basically motorized toothbrush heads. These guys zoom around like caffeinated cockroaches, spinning, skittering, and bouncing off walls. Resistance is futile. The book bristles with ideas for robot games and activities. Race robots against each other. Use the included punch-out walls to construct a Bristlebot maze. Stage a robot sumo-wrestling match. You can even customize your Bots with the provided wire legs, feelers, and beady eyes. And just when you thought the robot invasion was under control, stick the tiny motors (technical name: Klutz Robotivators) on any lightweight contraptions of your own design to make pipe cleaner Bots, plastic fork Bots, paper clip Bots — basically, whatever-you’ve-got Bots. On YouTube, dedicated tinkerers show off motorized toothbrush heads that are pretty darned impressive. Researchers at Klutz Laboratories (the folks who brought you Battery Science and LEGO Crazy Action Contraptions) have sacrificed countless toothbrushes to develop high-performance Bristlebots with more zip, wilder action, and a control that lets you adjust a Bot’s behavior. It’s a brand-new Botastic world.