Everyone - Thanks for the comments.
Ray - Glad the pen is holding up. I had to rebuild the DOL, but it's now better than ever.
...How long did it take to make?
The "how long" question is always a tough one to answer. I have multiple projects going all the time and I don't keep track of how my day is allocated between each one. Each project involves a lot of time waiting for things to cure / dry. I don't think curing / drying time should be counted when answering the "how long" question. But it seems I should somehow allocate some of the months / years I spent learning and developing the skills / techniques that made creating the project possible. What about all the time I spent working to earn the money to buy the equipment that I'm using? It would seem fair to include some of that time, but how to do so? I have found that people who ask "how long" generally fall into one of two groups.
The first group are curious and looking for a way to gauge the artistic content of the object. More time to create equates to more value. My answer to this group would be "a couple of days".
The second group are trying to figure out how long it would take them to duplicate the project. My answer to this group is "it took me 20 years to create this project, but you should be able to do it a lot faster".
Ed