Quilters mark their quilts with a design using many different tools and techniques. Always test a scrap of fabric before marking your quilt top. The marking lines should easily wash out of fabric. The lines should not wear off completely when you handle the quilt or you will have to remark the top.
Tools for Quilt Marking – These pencils and this chalk tool can be used to mark your quilt top before stitching your quilting design. Always check to make sure that the marks will easily wash out before drawing on your quilt top.
I used a stencil along with different marking tools to mark the blue fabric in the photo below.