Most of his mesmerizing sculptures are made with just cardboard, glue, and a knife. Warren shows us how to build our very own robot helmet, using the techniques he's perfected throughout his career.

Learn how to make a robot using recycled materials in this BBC Bitesize guide for Reception.

The upgraded Handle robot can lift 30-pound boxes to stack pallets with ease.

Upcycling is when we reuse old materials to turn them into something new and even more exciting. Watch the video to see how you can build an upcycled robot out of things you might find around the ...