I figured I'd share this easter egg I discovered whilst trying to make my avatar sick. Go to customize my avatar, change features, and highlight the hair icon but don't open it. Hold down the left trigger to spin your avatar, and hold it for 60 seconds. The hair icon will spin and you unlocked green, blue, and pink hair colors, plus some new doo's. If it doesn't work, try the right trigger, I forgot which it was. It's probably on youtube by now, but I wanted to let you all know anyway.