Popsugar Popsugar Harry Potter Easy Cosplay Costumes: Hello Kitty October 21, 2016 by Ann-Marie Alcántara What you need: red striped shirt, white cat ears, red bow, and suspenders. Harry PotterHalloweenAdventure TimeHalloween CostumesWonder WomanPokémonDIY Halloween CostumesStar WarsMarvelHalloween Costumes 2020