(Not actually a pen)
I wanted to make a spinner that felt satisfying to spin between my fingers.
I also added rounded indents at the top and bottom that feel satisfying to touch.
The model should also be printed at a slower speed because it can fall over as you get higher up.
This version of the model prints without pennies but feels worse to spin because its lighter.
Penny Version: https://makerworld.com/en/my/models/389135/edit