Glow In The Dark Polka Dot Derby Bowler HatsGet noticed with this funny hat. Each derby hat comes with vibrant colored glow in the dark dots. The perfect hat for night time events. Make sure hat is exposed to light so glow will work. Stock up on all your costume accessory and hat needs with our toys. We have a wide selection of novelty career costume and whimsical hats to suit any occasion. You'll be sure to find the right hat for your next party or costume with our toys.