As exercise for a CAD software in 2018 I created a 3D-model of a Safari fountain pen. It's not perfect, but it was a fun thing to do.
The model will be made public domain some time in the future.
Here's a sneak preview of the model. I'll have to do some final work on the nib before it's ready. Each part can be places separately, like a real pen. And I'll convert it to a broadly used format.