Have three fabrics, all rubber duckie themed, plan on backing it with fleece, in rubber ducky fabric, which I have. (4 fabrics all together) Any suggestions? Had thought of pinwheels in two of the fabrics spaced with a square block in between. I suppose that would work. Just have to find the spot where it tells you, if you want a 10 finished block what size to cut for pinwheel. Thanks for any and all suggestions.