A classic of the genre from Boing Boing - a zombie rights march in Austin, Texas, that suffered an attempted boarding from a counter-march of pirates.
The zombies' signs in the march included badly spelled slogans such as "Mairage = 1 Zombie + 1 Zombie", "More Binifits for Zombie Vets in Our Necronomoconomy", "Brains...The Other White Meat", "We're here, we're dead, get used to it!" and "Zombies Was People Too." The zombies, shouting "What do we want? Brains! When do we want them? Brains!" was unhindered by a group of pirates protesting the undead's demands for their rights.