If you like hot and spicy then the Blood & Guts Martini is right up your alley - using a tomato flavored vodka and V8 juice I've heated it up with a few drops of hot sauce and some chili powder and garnished it with a Jalapeno pepper!
This will add some smoke to your Halloween costume and will keep you nice and warm on a chilly All Hallows Eve, boy howdy will it, lol.