Traveling Tool Kit: Divider
Just an ordinary divider, this tool comes in mighty handy for making guitar pickguards. I set the divider to the radius of the soundhole ring, and stab one end into the workbench. The other end I have sharpened to a fine point, and I trace the curve on the piece of celluloid to mark the inner perimeter of the pickguard. I can then break the celluloid right on the scribed line.