Well, I think I figured it out. Yes, you can take the pieces from the pentagon and arrange them in the star. One piece from the star will need to be flipped over to finish the octagon. I printed the star and octagon and cut them out. Now I think I will make one. Thanks for all of your thoughts and inputs. And thanks Jim for the pattern. It's pretty cool. I'll post a photo of the paper cutout, but first I'll let you guys try it.