You may curl up raw edges of paper using your fingers to shape the curl. Curling is also a great use for the dry embossing tool. Use the metal ends for tight curls and the handle for looser curls. You can just use a pencil if you don't have an embossing tool or for tight curls use the end of your pick. You can curl thin strips of paper, wrapped wire, wire, stiffer twine, etc.