Hi Tom, I use the purple or blue marking pen(I purchased one with blue on one end and purple on the other) from Jo-Ann's or most fabric stores. The blue marker is water soluble and the purple disappears in "time". I prefer the blue. I make only small marks. However, NEVER, put a hot iron to either or you have permanently set the color. Just a drop of water and the blue mark disappears instantly. Sharon > How about a suggestion on a removable fabric marker? I hate those white > pencil type because I cannot get them out! > > > Thanks! > Thomas E. Moore