Although we still don't know what the newest season of American Horror Story will be about, it's time to think about your favorite past seasons and plan your Halloween costume. American Horror Story: 1984 is a gold mine of clever costume ideas, and AHS fans know there's no better way to scare your pop-culture-savvy friends than to perfect your Dr. Thredson or your Madison Montgomery. If you'd rather go the sexy route, there's always Moira the maid from season one. Click through to get some ideas from Murder House, Asylum, Coven, Freak Show, Hotel, Roanoke, Cult, Apocalypse, and 1984!