I bought a bunch of polyester fabrics when I decided to restart quilting - garment polyester - used to make girls' dresses, blouses and such. Then I learned 100% cotton was the best to use. Cotton fades and wears differently and should not be mixed as the polyester will last longer and hold the color better than cotton. I made quite a few before and they are still in good shape. I plan to make more - some day. I hand quilted them, don't know how I will do these - if I ever get to them. If I tie I would use crochet thread, don't know yarn would hold up well enough. I would use the same kind of fabric for the backing also. Just my 2 cents worth.