Tesla Motors firmware engineer Greg Solberg and his S.O. Lisa invented the electric Pink Bunny Slipper to ride around Burning Man with.

From the Solberg’s entry on Tesla’s blog site:

They each have a 36-volt system using six YellowTop 12-volt Optimas. Anyone who has used these 38 pound, 50 Amp-Hour, deep-cycle, sealed, yellow lead blocks will know that this is way more battery than one needs for a bedroom slipper. The batteries served their first life in my converted electric Honda Del Sol. The two front wheels are chain driven by a 7-inch brushed DC motor made by Advanced DC Motors. This kind of motive power is also way more than any fluffy footware really needs. The motors were surplus from the failed Tropica electric car venture by Renaissance Cars and are much happier working in the big toe of a giant slipper.

The frame is welded steel and plywood. I taught myself how to TIG weld on the soles of these shoes. “How hard can it be?” I said to myself. The lucky driver sits on a pillowed tractor seat and steers by the rear third caster wheel in the back. There’s a reason you don’t see too many rear caster steered vehicles. It has something to do with stability and cornering at speed, but I wasn’t listening to my friend Bob, who knows about these things. It was much more important to listen to my chief creative officer and get the visuals right. I understand forklifts are one of the few vehicles with rear wheel steering. If this Tesla Motors electric car thing doesn’t work out, I may apply for a job as a forklift driver.