I tried this, using a fine felt pen to draw the design on the Press & Seal. After sewing I found it wasn't easy to get some of the product off and still ended up with black marks on most of the fabric. Am not sure if it was the Press& Seal left behind or the white thread picked up the ink. I doubt if I will do that again (not with felt pen) as it was more difficult to remove than paper, at least paper will soften and wash out.