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.

Here’s our soft robot hand in action: This article was originally published in the May 2015 issue of Popular Science, under the title “Wave Hello To A Soft Robot Hand.” ...

HandiMate, developed by researchers from Purdue and Indiana universities, lets children (or anyone else) build robots with cardboard, velcro, and other cheap, easily available materials.

Then cut out those diamond shapes, gently squeezing the tubes and snipping across the fold. Note: The finger joints are diamond-shaped holes cut into the cardboard tubes.

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.

In the accompanying paper about the hand, Haptic Identification of Objects using a Modular Soft Robotic Gripper, the authors explain how they did it.