Zombies and Vampires
We actually like "nice" vampires, so we aren't ruling them out altogether. We just don't advocate excessive blood and gore. Dangling eyeballs (synthetic, of course), buckets of blood and other graphic measures designed to shock can be just too much. They frighten small children and spoil the fun. There's a difference between scary fun and glorifying violence. Chances are you'll recognize the difference when you see it, so keep a sharp eye out as your older kids design their costumes.