MassLive: Prom 2016 dress trends include floral patterns, long gowns, bright neons News 12 Long Island: Suffolk police help students find the right prom look without the cost Looking for 2016's perfect prom gown? This year's biggest looks include full-length and two-piece gowns, bright neons, lots of floral and black, according to Nolan Wells, celebrity stylist and ...