Last year I colored all the toilets in the office and nobody said anything.
This year, I opted to dress the restroom signs instead....
first I made cardboard templates
Then, instead of using post it notes, I used some scrap booking paper I had in the craft box. The result:
I bet THIS gets noticed!
...and maybe I turned all the nameplates throughout the whole office backwards, too. Maybe. You can't prove a thing.