Wall Lighting Fixture Sconce.
My 3D printer couldn't produce the first sconce I designed.
Glue sconce4.stl and sconce5.stl together.

I simplified the first try and it came out pretty good. I had to make sure the walls were 3mm for the best balance of printing strength and light thru transparency.
mini-sconce-1.stl

I painted the front with a wash of acrylic silver and copper paint. With a yellow wash on the back.
It's supposed to look rusty, but it looks like wood.