I made the mistake of buying one of those miraculous design cloths, and it didn't work very long. Shortly after it quit working, I was spray basting a quilt and it dawned on me that the spray adhesive might work on a design wall - AND IT DOES! It lasts and lasts, too. And it doesn't leave adhesive goo on your blocks. I sprayed it on the offending miracle cloth, because it was the right size, but you could use anything that's the right size for you. Mine hangs on a dowel held up by large hooks.