I have a small wallhanging that I am hand quilting. I marked the lines with a silver quilt marking pencil. A lot of the pencil has worn off the finished sections as I have moved on to work on other sections. What is the best way to get off the rest of the pencil markings? The piece is fusible raw-edge applique with a line of quilting around each applique. I am a little afraid to soak it because of the fusible appliques. Any suggestions? Thanks in advance for your help!