My design wall consists of a plastic table cloth from the dollar store -- one that has the fleese on the back of it. I put 3M command strips up, big button holes in the table cloth and hang it where I want it. I have those command strips on a wall, on the top of a wall unit in my living room, and on a door. I can move them where it is convenient. It isn't very expensive and works for me.
That is a good idea. And simple. Thank you for sharing!