The IKO is intended to be “a bridge between a playful experience and an everyday functional prosthetic system.” Basically it’s an artificial arm designed for kids that works with LEGO bricks. It was designed by Carlos Arturo Torres during a six-month internship at LEGO’s Future Lab, a research and development group. The IKO’s socket houses a battery that can be recharged in a docking station, and the highly articulating hand incorporates LEGO-compatible tubes and studs, the elements that interlock bricks together. This allows the child not only to play more fluidly—LEGOs work much better with two hands—but also to attach all sorts of LEGO constructions to his or her arm. It’s wonderful.

More at wired.com.