Yes,my last two projects. Used yellow clover. Now some of it did come out.But where my marks got a little on the heavy side. There still there. I did try removing before. Eraser fabric. Pretreated with ink remover. Maybe they will come out, with repeated washing. But I did wash twice. The other one a smaller table runner. Was worst. It had some cotton polyester materials for my one color. I don't normally use this mix in my quilts, I wanted to use this fabric up. And it was fine for this project. But the yellow chalk didn't come out of the mixed cotton, poly. If this would of been a really special project. I sure would be sad. I think I just handled the chicken quilt to much. A lot of changing my mind on quilting. Ripping out. And the chalk worked in way into material.Maybe even the pushing and turning in the DSM. I don't think I'll ever use it again. We put to much time into these projects to have them ruined.