I use some of them to make practice sandwichs so I can try out new stitches with different stitch lengths and or widths before deciding how I want to do the final quilting on a new project. I also used some to stuff a crocheted lion for my great grandson due in April. I did find that rolling pieces together into 1 unit that it saves a lot of bumps and holes. I just roll up what I think is enough, put it in the body and snip off anything that extends beyond the closure. Came up nice and smooth and rounded with no bumps. Maybe they would be good to sew enough together to make 1 block when you are quilting 1 block at a time and then joining the blocks together for a complete quilt. I just pitch the really small pieces because I don't need any more "stuff" to save.