If my top is dark, I use my Fons and Porter chalk pump pencil. I do have to wash the quilt to completely remove the marks. On light fabric tops I used painter's tape for straight lines and contact paper (mactac)for simple designs. I cut the outline out of the contact paper and it will stick to the quilt top for quite a few blocks. I have used the water erasable marking pens and they do work well. Pounce will work if you do one block at a time. Test your marking stuff for removal on a scrap before trying any new method on your qult.