Jason wins!
Walnut bark that turns with the lightest touch. Get close and sand. It happens fast. The only problem is the varying densitity makes it difficult to sand uniformly.
Alton,
Very nice pen. Here's a tip though if you are trying to stump this group - don't leave clues (like "WB") in the picture file name when you post it. Of course, I'm sure no one here would stoop so low to get a clue in such a challenge as you laid down before us all :wink:, but it is possible there might be someone somewhere who would :biggrin: