I was denied a promotion five times in the last year without explanation, so I want to wreak a little bit of havoc, just enough for my superiors to be annoyed, but I don't want to put extra work on my coworkers (like glitter would be a bad idea, since it would be extra hard for the cleaning lady to get rid of it; doing my tasks badly would mean someone else has to do it on top of their own tasks, etc).
I already put googly eyes on most of the internal decor, made origami cranes of every post it notes I could find, and sent the unabomber manifesto to my boss' printer. I'm planning to place the complete works of Marx into the office library shelf. Things like that.
I'm looking for further suggestions, what would Jim Halpert from the Office would do?