Poly batting is the best for holding blocks, even the heavy pieced blocks will stay and not fall off. I stapled a foam insulation board on the wall, and then used the yellow headed quilting pins to hold the poly batting on the board. I'm in a temp house right now and the design wall was the first thing I put up. On the hall way wall. LOL
Staples leave no damaging holes in the wall or paneling and the owner said no problem after he test the staple gun on a piece of dry wall and removed the staples. When I get moved into our new home, I will have a whole wall done with foam board over the dry wall. I don't plan on taking it down. But I do want the surface covering to be easy to change out.
Last edited by Onebyone; 12-24-2018 at 08:37 AM.