This is a design based on https://www.thingiverse.com/thing:1077343.
I took this design and rebuild it in fusion 360, changing some of the pen hole sizes, and the depth of the base.
Fusion 360 files: https://a360.co/2R7dkms
No supports need, really easy to print.
I used the following filament:
https://www.amazon.com/gp/product/B01IIAC2MW/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
The author hasn't provided the model origin yet.