Only a suggestion, but how about glueing a load of 1/8" x 1/16" iron bars side by side and then cutting the part as slices off that. A sort of large format zebra strip.

The strings might not line up with any particular bar, but they will line up with some of them :naughty:

Edit: Typo :whistling:
Edit: So why isn't it showing the post as edited
Edit: How many goes do I get? Need answers .