I’ve had this on my things to do list for like a hundred years, finally getting to it. We had the boring standard off white light switch covers on all of our outlets and switches, but I upgraded a couple of them.
These are done in PG walnut plywood, with tiny ceramic tiles added in the engraved areas. I was going for a kind of Mission style as that goes with our house and furniture, but wanted to keep it very simple. For the single outlet I had to add a couple of 1/8” wide frames cut from veneer on the back so it would meet the wall. It could really use another one.
If you are interested in the tiles, I got them from tinytilemosaics.com. These are the nano tiles. I’ve been having a lot of fun making them into jewelry, but they work great with wood as well. I might try an embellished box next.