This was something I designed because we used to have one with our magic kit, but lost it. My daughters were asking about it so we designed and printed one on a MakerBot Replicator 2. Here is a video demonstration of the process I used to design and print it: http://www.youtube.com/watch?v=GaO9g0v_QYI and if you want to learn how to master the coin paddle then check this guy out: http://www.youtube.com/watch?v=l00j2xcnoG4