Use these water erasable markers on your fabric! Do NOT apply heat or it will set. Ink disappears with water, but err on the side of caution and don't use it on the right side of your fabric. I like to use a fine mist spray bottle as to not oversaturate the material. Store cap down.
Comes in blue and white. The white takes a second to show up after the line is drawn. Use with caution, your results may vary.