Eagle, with all sincerity, regardless of the price I like your denim pens a lot better than the ones made with commercial blanks. Besides, you can vary the patterns very easily the way you do it. Just my 25 cents.
Mike, the only one I did, I just used MM to 12000 and finished with Ren Wax. Comes out pretty shiny. I am thinking of leaving the next one with just a sort of rough sanded finish so it will look like worn denim. Just turn the pen and decide as you go along.