My dear departed sister-in-law made a beautiful shower curtain quilt, flimsily, a TEXAS STAR, in sweet pastels. I am going by memory now but I believe that she did not layer it or quilt it. It moved too easily to have been sandwiched. The fabric seemed to hang and move like a single layer of fabric. Perhaps she did have a plain backing layer. I know that she used a clear plastic show curtain behind it so there would not be any water damage. It was such a striking touch to her families bathroom. So.... in the end, do give this a try.