This sconce fits onto the light fixtures of most ceiling fans. However, I've included the original Blender file if it needs to be modified to fit a specific fan.

You may need to experiment with different print settings and Fill Densities to get the best results with your specific light bulbs. If the walls of the sconce are too thin, they may warp due to the heat from the bulbs.

The settings I used for the "Low Heat" version of the model are:

Layer Height - .1
Print Speed - 50
Shell Thickness - .8
Fill Density - 0%
Support Type - None
Platform Adhesion Type - Brim, 20 lines

The settings I used for the "High Heat" version of the model are:

Layer Height - .1
Print Speed - 50
Shell Thickness - 1.2
Fill Density - 100%
Support Type - None
Platform Adhesion Type - Brim, 20 lines