I remixed two nice lithophanes made by Bethany Weeks into one lithophane lamp. I used the Camellia and Rose bas reliefs/lithophanes as walls and added the rest of the design that was made in SketchUp. This can be printed without support.
The lamp in the pictures was made from natural ABS but white PLA should look great, I do recommend to use a low energy bulb (like LED) so the material doesn't melt or warp. I added a small E14 fitting with a 25 Watt refrigerator lamp.
The original files are here: