sharpies also bleed and don't allow a fine line. I've used gelly roll pens with great success. they come in a ton of colors-though don't get the glitter ones that need rubbing to change color. I've also used other fabric markers which come in different widths. Believe it or not, Crayola crayons work beautifully and only need ironing (with absorbant paper) to be set. Again, the choice of colors is wonderful.