Maybe I missed it, but I don't think anyone mentioned using fabric stamps. Check the websites for Cindy Blackberg, a great handpiecer, and Stamps by Kate. I have stamps from both of them including a hexie stamp which I should find. You will sew a 1/4" seam, like BellaBoo mentioned, but the sewing lines are marked. The stamps are great in that you can use small scraps that may be hard to run through a computer.