Fun, oh yes I had some, made a batch of slim-lines and discovered CA isn't good for barrel gluing, neither was epoxy, but Gorilla non-foaming works well. Made 3 sets of barrel blanks and turned them selecting the best set for his pen, making a second fountain pen and a roller ball for me with the others. As I worked in engineering I have several sets of calipers, vernier and digital, but prefer to work by eye to the bushings. Thankfully as he returned safely, and months early from his most recent deployment, I'd got it finished and he's most pleased. My wife's friends have started ordering slim-lines having seen her pen, so I've just had to order more kits!
