I made a lithophane of a rose and in Sketchup I put four of them together to form a lithophane lamp. I put in an E14 fitting and a plug. The red one in the picture is really bright (maybe a little too bright for the camera) and the black one probably won't allow light to pass through so I think white is the best to print.
I printed the original file on our Inspire D290 and had no problems although there are some errors in the STL model. So I tried to fix it and reduced the triangles a bit, this is the file with ''Fix'' at the end.