Popsugar Entertainment Harry Potter 35 Easy Cosplay Ideas to Inspire Your Character Costume 36 Easy Cosplay Halloween Costume Ideas, From Harley Quinn to Harry Potter October 4, 2023 by Ann-Marie Alcántara View On One Page Photo 5 of 36 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Devon Davidson (@devonmdavidson) Share This Link Copy ← Use Arrow Keys → 5 Easy Cosplay Costumes: Professor Trelawney From "Harry Potter" What you need: The headscarf is everything when it comes to Professor Trelawney. Once you have that and the glasses, this easy cosplay costume can be anything you wish. Previous Next Start Slideshow Harry PotterHalloweenAdventure TimeHalloween CostumesWonder WomanPokémonDIY Halloween CostumesStar WarsMarvelHalloween Costumes 2020