ok, I'll fess up.
Because of the multiple coats of glue and the possibility that there may be a point of a star sticking up, my first pass is with sandpaper. (150)
THEN, due to pride, I turn the rest with a skew until I reach the desired size, then more sandpaper.
IF you have more brains than pride, you COULD use sandpaper throughout.
IF you DO use a tool, YOU will FEEL like a woodturner, unless you goof, then you will FEEL like an idiot.
YOUR CHOICE!!!
Oh, do make sure to pick up and use your skew SOMETIME the evening you make the pen. That way, when people ask what you used, you can honestly say, "I turned it yesterday and I used a skew!" (Not both at the same time, but no one REALLY asked THAT question!!!)
Yes, this IS a joke - no, I am not accusing anyone of doing this!