Hitch Cover with swappable decorative covers

thingiverse

Print the Hitch Base and Hitch pin one time. Add a design to the outside (marked with o) of the decorative mount block. I used tinkercad in my testing. About 100mm x 100mm looks right to me. see images for my attempts. you can make as many decorative covers as you want and then swap them out as needed/desired.