An Arduino Uno acts as the brains of the operation. Control is via a Playstation 2 controller, in this case a 2.4 GHz third party version.

We've seen more than our share of game controller hacks in our day, but few as devious as this creation by the folks at Near Future Laboratory, which promises to make games more "realistic" by ...

This little hack project by Kellbot of NYCResistor takes a rolling ball, an optical mouse, a gutted PS2 controller, and some Arduino hacking and makes it into a working (and awesome) virtual Katamari.