My Little Day Collection of Party Hats & Masks. Discover masks that allow you to disguise yourself during a carnival or a children's birthday party! Become a superhero, a pirate, a rabbit, a unicorn, a zebra, a lion, or whatever else you want to be - It's time to transform yourself for a party! Party hats are a must-have when it comes to a children's birthday party! Whether they be spotted or striped, decorated with diamonds or stars, they make a great addition to any party. Choose between traditional pointy hats or crowns made from silver, pink, black or gold glitter paper! Dress Up In Style with My Little Day Party Accessories.