Does anyone know how to do a design wall? I heard homosote? was a material found at the big box stores then cover it. Attach it to the wall? How? I would have to ask someone at Lowes what it is and it they could cut it? I would not want it to look like a white board but something decorative if it becomes a permanent part of the wall. I heard that some use the flannel side of a tablecloth. But where would you put it to see your blocks?