A few of us used this technique to make "throw rugs" out of all the ugly 100% polyester recyclables (remember leisure suits and stretch pants?) when quilters decided to use only 100
% cotton. It was impossible to press so it needed to be pinned until sewn. I remember a sturdy fabric for the foundation. Mine was stitched into a rectangle with guide lines drawn strait with a pen before I started. It really cleaned the mud off our shoes by the back door and washed very well. The polyester kind of stood up and looked prettier than we expected. Very colorful, practical and beautiful. Just a crazy fun memory for me. Yours is great.