Someone was telling me today about a chaulk type pencil that they used to go around their freezer paper appliqué piece and it keeps it from fraying. She couldn't remember the name....she said it wasn't Roxanne. She said you go around the freezer paper with this pencil (it's white) and then you heat set it with an iron which hardens it. This keeps the edges from fraying while needle turning the appliqué piece. Does anyone know the name of the pencil she was talking about?