there's a scrappy on my bed right now that is just squares of whatever leftover large scraps I had from the past decade or so of various sewing projects. It has cotton, flannel, a few squares of canvas, some denim squares, and a few poly satin ones. It's nearly 4 years old and it's held up just fine thru a few washes and heavy use. It's not an award winner but every square has a story and a meaning to me, I love that quilt very much. Just start quilting and enjoy yourself!