Snowboarding is already pretty cool, but if you wanted to look especially awesome while barreling down a mountain slope, you might want to follow this guide. It shows you how to attach color changing LEDs to your snowboard, and manage them with an Arduino.
This project used the Arduino Uno R3, but it would be possible to use other Arduino devices as well. If you used a Yun instead, you could even update your sketches from your cellphone, while in the middle of a backflip!
Of course, we do not suggest doing this, as you'd probably break your neck.