This is a remix of the original model to remove the screw down tabs - so you can slip it over the original doorbell - Its more for aesthetic purposes but hides the gap that the standard mounting has due to the plate's taper inward.
Covers up the hole I had in the wall behind, as well as the tapered edge. Check the photos.
I printed this out with TPU and seemed to work well. Adjust to your environment as required.
The author remixed this model.
Removed screw tabs for those who don't want to mount but just slide something over to hide the edge/original mountings. Also made it thinner as the original was way too thick for my flat wall bracket.