So my house has a super janky wall box. Very out of code, on an old exterior brick wall, and stupidly shallow. It has been an open hole for 3 years. Finally got an electrician out and they basically said “if you fix this, it’s gonna be a billion dollars” (which I anticipated).
I decided to take matters into my own hands by designing an offset box extender on my iPad in Shapr3D. I tried a couple different styles but thought an angular one was the slimmest. Then I printed a few test prototypes to check fit!
My Bambu Lab A1C 3D printer spit the frame out in just a couple hours and the finished product looks pretty good! I do need to print it again with a white closer to the Lutron frame, but HEY, it’s not hideous! SUCCESS! I like that I recessed the Lutron frame as well.

All in all? A good fix!
Obligatory forgot-to-include process photos.
@snazzyq I’m sure it’s fine, but just as a random heads up, I was always told not to use PLA as any sort of faceplate on a gang box as PLA is flammable and not UL listed since it can melt if there is a short.