Have you looked at the Missouri Star Quilts videos to make a very easy pinwheel? I have used their method for 3 quilts and I love it-- so easy with charm packs. Basically you put 2 squares face together and sew around all 4 sides, then turn it on the diagonal and cut from top corner to bottom and side to side. Open up and you have the pinwheel half made -- just sew the 4 pieces together. (And there's also a very easy Broken Dishes using the same method but sewing the 4 pieces together in a different way--can't wait to try that.)