Thanks for the suggestion of tissue paper. Good idea! i have used dryer sheets but only after they have fulfilled their intended use. A quick press with a warm iron and you've got a foundation. Plus the satisfaction that you are recycling.
Too, I have used short strips of fabric sewn end to end to create a long strip and then created a jelly-roll race type quilt. Used up a lot of strips without having to think much what was happening. The only consideration might be lights, mediums and darks alternating but jelly-roll race quilts are almost as addicting as the stack'n'whack.