I am re-knotting a brush for my friend Mario. It was his father's. So far, I have Dremeled out the knot & glue, sanded it and epoxied in a couple of pennies, to add a little weight. There are some traces of paint still on it, but I am leaving those (after sanding them as smooth as I could.) I don't want to hide the age of the brush, just make it usable. I will post some pics later, when my hands are less tired.