I have lots of the "fabric" that bed ruffles are attached to. It is not cotton, but is rather some sort of polyester that has little tiny holes in it. I know one would not use this as backing, but I wonder if it would not work great as foundation for piecing.
I wouldn't think the melting in a fire would be an issue as it would be inside the quilt, and the quilt would have to burn first before the fire got to the foundation fabric. What are your opinions on this, foundation piecers? I haven't done any yet but do hope to try it this year.