"Cubatron," by Mark Lottor

In his professional life, Mark Lottor is an Internet pioneer who worked at SRI International and was a member of the Internet Engineering Task Force, specializing in the domain name system.

For recreation, he created the Cubatron, which consists of thousands of individual lights (two RGB LEDs per polycarbonate ball) that can be updated 62 times a second. Over time his Cubatron design has advanced; the latest version is a modular one that's an eight-foot cube. The Cubatron L5, five modular Cubatrons side-by-side, had its debut at Burning Man 2009.