I am working on a jean rag quilt. You cut squares of old jeans and squares of old flannel. stack a piece of flannel on each jean square. sew each two sqares to the same. The seam will be your top side. Continue to whatever size you want. You can put little snips in each seam to make it fray more. [ the seams are on the jean side and this is the top.] You are always sewing two wrong sides together. No binding or filling required