OK, so nothing revolutionary here, but thought some might be interested.
Hillman 7/8" hole plugs are a
perfect fit (Lowes, $1.39 pair). Its like they were made for it.
Now, I need to work out some type of handle to pull them out for the power port (I'm thinking a small screw in ball attachment).
Since I have my switch blank USB charging port, I really never use the power ports and don't like looking at the cigarette lighter or the empty and brightly lit socket.
A small thumb screw in black would work well, also.