The Joydick is a DIY cock ring that turns a penis into a 4-way joystick, with masturbatory strokes replacing as button presses. Honestly, I'm not sure I'd be able to get past lv.1.

The original joystick case, now gutted, can then be turned into a kleenex box.

To learn how to make your own, check out SF Media Lab's tutorial. [joydick via fleshbot]