The back was made from some large pieces of the retro fabric and some plain blues.
When I had finished cutting and sewing the "Twirling Triangles" quilt, I had a stack of long triangles left over. I was not about to throw all that wonderful material away. I sewed white to colored triangles, squared them up, which took a long tedious time, and was able to make this cute, smaller quilt. I quilted it myself, just straight lines with invisible nylon thread. The back was some I had on hand which goes perfectly with the front.