$15 to $25

The principles of air pressure and suction are fascinating, but not as awesome as a beetlebot you build that can scale walls! Includes a colorful 8...

What's coming around the corner? Is that... a T-Rex?! Don't move, so it can't see you! We're loving this DIY robot kit for kids who like building a...

A robo boxer, spin-o-vision, ghost mobile and flywheel cruiser seem to be more than "gadgets!" Kids follow the thrilling process of creating 11 mac...