I'm making 1" unfinished sashing with the background fabric. White for the pastel DJ and cream or unbleached muslin for the CW one. I found a small flowered print on white for the backing on the pastel one and a cream with a small print for the CW. I'd planned to make both backings with the background fabric, but ran across good sales on the prints. I'll decide at the end whether I'll use background fabric or a variety of fabric for the "between" triangles, depending on what I have left by then.