I have just put up the design wall in my studio! Here it is:

It’s nothing fancy – three panels of builder’s insulation (half-inch polystyrene), covered with flannel and mounted using Velcro – but it will do. The basic idea is to have a neutral-colored wall you can pin things to – or, if you cover it with flannel, just smooth the fabric against it so it sticks to the fuzz. (Works best with quilting cottons – doesn’t work with silk as it doesn’t stick). Quilters use design walls all the time; it’s not quite as good for sewing, but I can use it to store samples and work out design questions without tying up the dress form.
Currently on the design wall is the mood board for Phoenix Rising, plus some scraps of dyed china silk and organza from my earlier experiments. I might also use it for book stuff, if I need to resort to physical scraps of paper.