I have a coworker who *keeps* suggesting that we all wear company polos. When my boss announced we were doing it for an even I said, "Oh. Like McDonalds." No polos since.
I almost posted this one on my wall... but after being screwed out of a promotion and a raise (my bosses and I both know what they did), I think this might put forth a little more innuendo and angst than I want to project.