Fingertip Wii Control

I really like what this guy's done using an IR LED array, a Wiimote and some reflective tape.



His hardware is a tad cludgey, but it works surprisingly well and could be bundled officially and cheaply using just the guts of the wiimote, leaving out the motion sensing, buzzer and speaker etc (so you don't tie up your existing hardware) and a set of nice thimble-like fingertip covers. I'm sure it would make a great enhancement to the Wii control methods.