Found this Manzanita root ball (burl) at my local Woodcraft store. Power-sprayed it to get as much dirt and rocks out as I could. Still hit lots of pockets of dirt and rocks as I turned it. Between that and the hardness of the wood, it took a long time to turn down. I had to sharpen my tools every few minutes. I don't own any carbide tools, they may have worked better. Finished with Arm-R-Seal satin and a top coat of wax on the shiny parts.