A woman named Debbie Leung, with help from her husband has created what could be the coolest 3D printed prosthetic hand yet. It uses LED lights to display different RGB colors. It also features a color sensor that works when you hold a colored object up to the sensor on the side of the hand. At night time this hand looks truly amazing, and would make for a great halloween hand for those with our without a missing hand. Read more and check out the video and photos at: http://3dprint.com/15064/3d-printed-light-show-hand/