I have been quilting my T shirt quilt one block at a time on my domestic machine (it's far to big to worry about quilting anything larger than that at once). I find that I get in a groove for a minute then panic and don't know which way to go so I want to draw some lines to follow or use as a guide at least. I need something that will mark well on black, white, cream gray, red etc...is there some "magic" all in one marking tool that will do this? Or does anyone have a favorite they would recommend. I have the blue marking pencil which is ok, but is there something better?