I am building an A5 for myself and went a little overboard sanding the treble side of the neck. The black stripe on the binding disappeared for a couple of inches. I really don't want to redo the binding. Any suggestions for a good way to make a black stripe on the binding- Sharpie pen with a fine point, paint or stain, splice in new plastic?? Ideas welcomed, it doesn't have to be perfect just not obviously screwed up.