Here's what I've been working on. I'm not sure yet, but I'm thinking of incorperating this into the back of this quilt.
For the back I'm planning on doing Coal Kona cotton, with a strip of patchwork of the other fabrics from the front. Possibly binding it with some fabric from Anna Maria Horner's Good Folks line (since I couldn't imagine trying to bind a quilt with the violle - though I'm sure it is possible. Not to mention that it's a good excuse to buy some Good Folks fabric!