Here is a pen I finished this weekend. I made it from vintage acetate, transparent acrylic, titanium, and argentium silver. I built the pen around a Pelikan 800 nib, and due to its incompatibility with converters, I made an integrated syringe fill mechanism. The barrel has 6 small slots cut in it to allow you to monitor the ink level. I made the spider clip from argentium silver. The pen has a diameter of about 1/2” at the cap threads, which are triple start, and an overall length of 5” when capped.