This is an OpenSCAD file built using https://github.com/brodykenrick/text_on_OpenSCAD to make adding custom text to this template built by https://www.thingiverse.com/Wdankeriv easy.

Get the text_on.scad from the github link, and open the GolfBall2.scad file. Set your text and export the stl.

In Prusa Slic3r, I added a support enforcer cylinder to the middle instead of putting supports through the entire thing.