I made a great investment at Spotlight and bought a disappearing pen. Now I am wondering what took me so long. I can draw on the fabric with it and it lasts long enough to embroider over. I did an experiment to see how well it fades.
And I took this photo 5 days later – almost gone, and I haven’t tried washing but it does wash out if it doesn’t fade quickly enough. There is a longer lasting pen for projects that take more time. Made in Japan so maybe it would be good for sashiko which I love the look of and have been wanting to try.