I use to make tops for my local quilt store before I became a longarmer. Our deal was that I would get store credit in the amount of fabric that the sample took. For example, if the total yardage for a sample was 7 yards, I received a 7 yard credit. Other stores in the area allow the piecer to keep the quilt after they no longer need the sample, but I liked my arrangement better. A friend is now making the samples and they have continued with the yardage credit.