$25 to $50

Going up! Build an adorable robotic gecko that defies gravity to crawl up, down, and all around smooth vertical surfaces! As you assemble this moto...

Build a sleek, modern (and adorable!) walking robot powered by salt water and magnesium — no batteries required!  Discover how a metal-air electroc...

These blue, wireless, Bluetooth headphones bring a whole new aestetic to jamming out. Comfortable fit, easy connection, and a colorful case make th...