Have you thought about randomly placing them on a sweatshirt and stitching them down. Sew across, up and down. You might have to unstitchc the sleeves to get them stitched and then sew it back up again. No need to worry about the edges. After a couple washings it will have a raggy look which it should. Just something I saw at the quilt show in Paducah, KY last week and made me think that my scraps could be put to good use after all.
Jeannette in Vermont