When I made the first two blanks and finished the pen, I thought it was far too much trouble to go to and won't bother with anymore, but I have had over 25 people want to buy them. I have about 12+ prepared blanks and more soaking in water ready to be prepared. If you would like a few I will get them in the post to you.
I may have found a source of larger cones, mine are from a Corsican Pine in the neighbours garden, but there is more of the tree overhanging our garden than over theirs.
Peter