Handheld LED lights are great for illumination, but not so great as weaponry, until now. Called the Bedazzler, this device is essentially an LED-based incapacitator that causes nausea. Video after the break.

A great Arduino project for people who really like blinking LEDs. We also added in a mode selection so you can put it into some pretty color-swirl modes, great for raves and parties.

[via Instructables]