I needed to mark a dark blue quilt for quilting, and went to the fabric store and asked the gal what she recommended. She said that she used what she called a chalk roller. It is compact, being only about 4 inches long and the diameter of a tube of lipstick. It is filled with loose chalk, and comes in white and blue, and is dispensed when you press it to the fabric and roll it along. In the opening are small teeth, that allow small amounts of the chalk to come onto your fabric. I have never seen anyone comment about something like this, so just thought I would share. It has been my salvation with quilting this dark quilt. And you can buy the chalk to refill it.
You can see to the right of the marker, where I drew some lines with the marker. This is an awesome tool.
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