I find old tattered quilts at thrift stores. Sometimes I get them for $2.00-$3.00. I cut them up using only the best parts. Sizes vary depending on their condition. Then I rebind them. After that I scorch them slightly with a very hot iron. Key word being SLIGHTLY. These I sell at craft shows. The table runners seems to sell first. Then the mug rug size.
Also, I line thrown away desk drawers, painted or not, with the same quilt fabrics. Great for out in the open storage. These are a big seller.