Oh, wow! Do something wonderful and so simple with the double knits. Cut them into squares, then sewn together into a top, backed with flannel and then tied in the corners (either with "string" or machine tacking). Nice for rough treatment by friends and family or at shelters for people. Don't dismiss that they are very durable and useful for those in need. They wash and dry easily and the colors hold up quite well. Good nursing home donation project as their laundry is hard on cottons.