In our house we have by-pass doors on the closets (bedroom/sewing room). These have a metal track, which is covered by a metal trim. I attached sticky backed loop and hook tape to the underside of this trim and the softer fuzzy side to a large piece of flannel (had to staple it on as the sticky stuff clogged up my machine and just didn't work). This gives me a large area to use as a design wall and when I'm not using it I can separate the tape and fold up the flannel until the next time.