I'm a video game developer by day and love playing with esoteric peripherals. I modded a Nintendo Power Glove, originally released in 1989 for the NES. I replaced the ultrasonic sensors with an accelerometer, wired connection with Bluetooth, and original microncontroller with an Arduino.
Blog post explaining why I did this: http://biphenyl.org/blog/2009/04/03/the-power-glove-20th-anniversary-edition/
Instructable for building your own: http://www.instructables.com/id/Power-Glove-20th-Anniversary-Edition/