I love subtle, little disruptions when everybody is supposed to be all "OMG-this-is-so-serious." Especially if I can do something sneaky that makes somebody else blow coffee or Red Bull out their nose.
Ladies and gentlemen, I present to you the mustache pencils. There are five different pencils, each imprinted with a famous mustaches. There are pencils depicting the facial hair of Salvador Dali, Zorro, Burt Reynolds, Django and Clark. Put one of these under your nose, and turn slowly to face someone, and watch them just loose it!