Guitar strings

[Dean Lapinel]

I'm Painting a portrait of a guitarist with his favorite vintage guitar. I am planning ahead (really worried ahead of time) for the painting of the strings. I would like these to be closer to realism than "suggestive". I wonder if sewing thread run though thiined paint might work (ancor one end then swing it down to the canvas).

Are there known appoaches for this subject? I do not think I can do this well with a stick and brush.

Thanks-