http://www.youtube.com/watch?v=9rgQd...VFDHmDXqCIzuAw
Sorry about the long link! I worked on it for 15 mins! How about a Disappearing pinwheel from MSQC? Here is a picture of the ones I did for the Rainbow Scrap Challenge. There is also another way to set these from the same pinwheel. It looks more like a Churn Dash with a pinwheel center.