I recommend printing upside down with normal supports. This is the fastest way to print and creates a smooth surface on top. It also allows you to imprint via a textured PEI print bed if you want. I used PETG filament for long-term durability.
This outlet cover makes a great pair with a USB outlet for charging of your favorite devices - here's a link to the outlet I used:
Good Luck!
The author remixed this model.
An outlet shelf with a larger top and wire storage and wire pathway.