NATION NOWParty City's most popular costumes of 2016Party City predicts Snapchat filter-themed costumes, including those with flower crowns, will be popular among adults this year.Party CitySnapchat's rainbow vomit filter will probably make an appearance this Halloween.Party CitySuperhero costumes top most popular Halloween costume charts this year.Party CityHarley Quinn is a popular pick for girls and women this year.Party CityWhether you've caught a Pikachu or not, this Pokemon Go-inspired costume might catch your attention this Halloween.Party CityIt's not election season without presidential candidate costumes.Party CityParty City expects to see many Donald Trump costumes this Halloween.Party CityBatman-themed costumes top many most popular lists this year.Party City