Thought this was cool. It's a 3D printed ping pong ball. It's super light weight, can literally be folded up so that it won't break whens its placed in a person's tight pockets, and its rather quick to 3D print it because of its size. There is a picture and then a video of two guys playing with it below. What do you think?
http://i.imgur.com/gDzTXZf.jpg
http://vimeo.com/97476908
