I just used some freezer paper marked with quilt designs, on my dolls quilt swap. I wanted four copies of the same design, so I traced three from the original, ironed them onto the quilt, and stitched around and onto the paper. I used quite a small stitch (1.6 on my machine) and it tore away fairly well. It was a bit tougher than ordinary copy paper, but didn't pull the stitches too much, and I only had to tweeze out a few stray bits. But because it was freezer paper, it stayed in place nicely while I was quilting, and of course, I didn't have to use any pins, which was an advantage.