I finally have a real design wall! It is 4' by 8' (and I have another piece of foam insulation board, so it may double in size-- I just have to get more batting.) I was able to cut it down just a little bit, so that it fits the height of the wall perfectly, eliminating the need to put holes in the wall... and it is portable in case I decide to move things around.
And here is some progress on my mandala quilt project--