When I moved into my studio at Highland Collective there was an open electrical box in the wall. It needed covering. A blank plate would have done the job.
So instead: a custom 3D printed plate, a brass hose bibb through the middle of it, and a label maker.
It is the right size and shape to read as building infrastructure until you actually look at it, which is the entire joke.
Almost nobody notices. I never point it out. That is my favorite thing about it.