Use them for backing a piece of stitchery or Redwork. I've been doing alot of Redwork or Stitchery. After I have traced my pattern on a piece of muslin or tone on tone fabric, I cut a piece on muslin the same size as the traced piece to use as a foundation and baste them together. Then do my stitching. It will hide the thread tails and trails on the underside as well as prevent puckering from your stitching. I back all my stitcheries this way