4M Doodling Robot Science Kit
When kids can't decide whether to build a robot or a work of art, here's the solution. Start by building the robot, following detailed instructions and learning about model building, robotics and mechanics. Then place the 3 felt-tip pens in its grip, turn on the motor and watch it spin, vibrate and shake. The result? Doodle-ific! Requires 1 AA battery, not included. From Toysmith Group for ages 8-12 yrs.