I cant quite remember the name of the Gadget and require the communities help to find it. The gadget stands on top of your monitor like a webcam and it reads your movements. There were some applications that were released for the device which use hand gestures to get a frog to jump from Lilly pad to Lilly pad. Another application that was made required your hand to be put in front of the camera and it displays a sort of x-ray model of it which can be moved around.
I'm not sure if this helps buy @Logan mentioned it once in a video that @Pistol ordered one and couldn't wait to use it. Soldierknowsbest also did a video on i but i cant find it anymore.