Hitch Plug

Hitch plug

Used https://www.thingiverse.com/thing:15198 for the letters

Chose the needed letters in my slicer, Sized, placed and lifted (just below top surface of plate, turned off Automatically drop models to build plate).
Either use dual extruder or change filament Just above top surface of plate.

Print a short section of insert to ensure a good fit in back of plate. Scale to fit.

Change to Your Liking.
Enjoy