You could always do it like we did in the Air Force back in the dark ages- - - - -waxed string in a series of loops. The Quality Control gnomes used to measure how far apart the loops were and write us up if we didn't get them evenly spaced!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!