Brushbot Kit by Maker Shed, $20 at makershed.com Learn the joys of electronics while wiring and racing these adorable toothbrush "robots," which scoot around the floor on nylon bristles using a tiny pager motor and coin cell battery. Photo 6 of 10 in Editor's Picks: 10 Cheap but Cool Finds Under $50

Editor's Picks: 10 Cheap but Cool Finds Under $50

6 of 10

Brushbot Kit by Maker Shed, $20 at makershed.com

Learn the joys of electronics while wiring and racing these adorable toothbrush "robots," which scoot around the floor on nylon bristles using a tiny pager motor and coin cell battery.