While there are many ways to accomplish the same thing, I thought that I would show how I made side fret markers on my Nova U. I took a 5/64" drill bit and gently and carefully twisted it between my fingers until it just reached the point where I had a divot as wide as the drill bit. Then with the tip of a round toothpick I dabbed a TINY amount of white paint in the divot. I must emphasize TINY, as it surprised me how little it took. I think the results are quite good (see photo).