Neon Plastic Gangster Fedora Costume Novelty Hat Dress Up Any Costume With the Perfect Hat. It's time for a pop of color with the Neon Fedora Party Pack! Keep these brightly colored fedoras on hand for a hat that will please your guests and your budget! These assorted neon hats are perfect for Halloween gatherings, Birthday parties, and music inspired events! Assorted neon colors with a black band. Made of plastic. These plastic gangster hats feature a vibrant neon sheen and an alluring thick black hatband.