How does one get a single additional fret marking dot painted on the side of their fingerboard? What's the best way? I have trouble finding the position of the first fret on my MM Stingray4 fretless (I wish they painted it on; Warwick has a dot on the first fret of their fretlesses). For now I cut out a tiny square from a minidisc's spine label and put it where the 1st fret should be, and it helped immensely, but when I was polishing my bass today, the label piece got wiped off. How do I get an additional dot permanently painted on there?