I having been making "mug rugs' for about 14 years as hostess gifts and for family and friends, but never thought of round ones. Good idea. However, I like using scraps from my used sheets, or left over muslin pieces for the foundation and back them with slightly used towels. Works great. I took your idea today and made four blocks using your idea and cut then down to 5 1/4" blocks for a quilt for "Just for You", our guilds donation to the Childrens Hospital in Atlanta. Thanks so much for sharing. Eileen