I have found an easy way of colouring nylon fishing line for rigging, just run the line over the end of a tube of rub n buff silver or pewter through the thumb and forefinger to spread the colour over the line easily. Try it and smile.
THE GREAT WALDO:
That is a slick idea. I recently solve the problem for wire bracing on 3/4" to foot scale. Photo-etching, and I have streamline wire.
Blue skies,
Dan-San