Hi all, thanks for the comments.
I'm aware that my slimline pens are a bit "fat" for most peoples taste. To be honest I'd rather not make them using slimline components, but it's all I have available to me. Does anyone know a supplier pen parts that will ship to Ireland for a reasonable cost? Also, I don't know much about pens other then making the slimline ones; my mandrel came with fatter bushings (10mm? I think) but I get confused when I look online for non slimline kits, there seems to be a vast array and it's not always clear what bushings I should have to suit a particular kit.
Seeing as AlexG asked:
The steampunk was made from scratch by myself, I sourced old broken watches from a jewelers (I could have bought watch cogs on eBay, but became obsessed by the thought of using real actual clock parts) and disassembled the watches movements to their component parts. I then painted the pen centre with black paint and glued the watch parts on. I bought clear casting resin (something I could source in Ireland for a reasonable price) and cast it in a small plastic tub. I followed the manufacturers instructions for avoiding bubbles, which worked, but there is one air pocket right on the pen barrel.