My signature is a heart. It can be cross stitch, embroidery, applique, etc. Once I used a gold heart charm & another time a button. I also like to incorporate at least one piece of red fabric in every quilt I make. I always do a permanent label by incorporating it in the backing. Never a sew on. The label identifies who it is for, when, why, date, & my name. After all, quilts are MADE WITH LOVE.