Children celebrate Halloween by trick-or-treating in costumes, watching scary movies, and engaging with popular monster symbols of the holiday like ghosts, vampires, witches, werewolves, mummies and zombies. Popular Halloween activities include going door-to-door to receive candy while dressed in costumes and partaking in movie marathons of horror films at home. Common monster icons associated with Halloween include ghosts that appear and disappear, vampires that drink blood and sleep in coffins, witches that fly on brooms, and werewolves that transform during the full moon.