There are plenty of people out there (like me) who have an intense devotion for two different fandoms. For the most part, these fandoms are kept apart and there's not much crossover — except during Halloween [1]. Thanks to the creative minds of people who cosplay during Comic-Con [2], you have plenty of inspiration to combine your favorite fandoms. Maybe you'll choose the R2-D2 Hello Kitty idea or the epic mashup of Charlie's Angels and Chewbacca. Either way, what you see ahead will be a great jumping-off point to come up with a fun, unique Halloween costume idea.
Belle as a Gryffindor Student
Anna as a Hufflepuff Student
Steampunk Princess Leia and Darth Maul
Elsa as a Ravenclaw Student
Aurora as a Ravenclaw Student
Street Fighter Snow White and Cinderella
Snow White as a Gryffindor Student
Ash Ketchum of House Targaryen — Pokémon and Game of Thrones
Street Fighter Cinderella
Moana as a Hufflepuff Student
Rapunzel as a Gryffindor Student
Pink Chewbacca and Tusken Raider
Steampunk Star Wars Characters
Martial Arts Stormtroopers
Jasmine as a Ravenclaw Student
Mandalorian Snow White, Lilo, and Prince Charming
Steampunk New Order Stormtrooper
Links:
[1] https://www.popsugar.com/Halloween
[2] http://www.popsugar.com/Comic-Con
[3] https://www.popsugar.com/love/Disney-Princesses-Harry-Potter-Students-Halloween-Costume-42288334
[4] https://www.popsugar.com/entertainment/Halloween-Costume-Ideas-Groups-25490768
[5] https://www.popsugar.com/tech/Comic-Con-Cosplays-2016-42032095