Okay, thanks everyone for the information. I do have a stash and will be cutting from it. I have started stacking fabrics that I like and will see what I end up with. I am going to cut ten inch squares, as I can made 8 HST easily with that number. My figures tell me I will need 18 white ten inch squares and 18 purple ten inch squares. I am not cutting anything until I have checked my math a few more times.
Dina