I dislike marking. When I was starting to FMQ, I went over and over my intended pattern on a whiteboard with a wipe off marker. Once it was in my muscle memory, I went to the quilt. Remember you are just making big puzzle pieces. I marked perfect circles with yellow chalk one time. I didn't like it. I couldn't see the line through the foot well enough and the chalk was difficult to remove. Repeating flowers in the center of blocks are drawn on waxed paper and stitched through the paper. I was told to never cross a line, but I've discovered I like the playfulness of swirls and loops, so that advice has been disregarded. Make a 12 x 18 inch sandwich. Play on it, then go to your quilt. Sometimes we have follow the Nike advice, "Just do it!"