I use common tissue paper that you use when wrapping gifts. It was the way I learned to do it years ago and it has always worked for my applique. I usually use a satin stitch. I either pin the paper or dab a bit of glue stick to hold it in place. I suppose other stabilizers give great results but since this always works for me it is the only method I've tried. It tears away super easy and I don't worry about the few very tiny remnants...they wash away. Plus it costs practically nothing...a pack from the Dollar Tree lasts a long time!