I found that "Igor" switch so cool I changed the handle to be able to print a soft ninja flex knob.

The soft Ninjaflex knob gives is a little bit more insane look, and different feel when actuating it.

You can find the base and the rocker here: http://www.thingiverse.com/thing:649284

Print the knob in NinjaFlex or any flexible filament, and it slides smoothly on the handle. Get the base and rocker thing from the original.