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.

And that’s especially true if that cardboard can then be transformed into an articulated 20-inch tall robot like our friend here.

Smartibots, a robotics platform engineered around foldable cardboard, launched on Kickstarter in late June. It's projected to ship by the end of 2018.

Build up the rest of the police box with cut sections and lengths from other cardboard boxes, and secure using tacky glue. Paint the outside blue, and add embellishments once dry.

Until recently, you might have added "cardboard robot" to the list. But a project called Kinetic Creatures on the crowd-funding site Kickstarter shows that it's a perfect combination.

Smartibot is the world’s first cardboard robot that can think for itself. We’ve been talking to the man behind it to find out how you’ll be able to assemble your own.

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