Depends on how many pot holders you want to make, and whether you want the jelly roll race style on both sides. Rather than doing it like a jelly roll race, I would probably take the 1.5" strips and make them different lengths, say about 5", 3", 6", 4", .... Then depending on how many sides of pot holders you want to make, add 9" strips to the initial strips, or some 8" and some 9" if you want the different pot holders to look different. Join 8 strips, then cut them to width (8.5" if you want the finished size to be 8x8".