There is a product that uses a magnet to hang the quilt. There is a flat metal piece that you Command Strip to the wall. Instead of a dowel, you use a curtain rod or metal rod that is attracted to a magnet. I have put up my design wall this way. I will use it again if I have a holiday quilt to hang. No nails. I will see if I can find the name. I think I bought mine at a quilt show.
edited to add link:
https://magnificentquilt.com/