Personalized Unicorn Kitty 3rd Birthday Toddler Dress. Cute 3rd birthday Toddler Dress - Red with Polka Dots with big polka dot number three, pink flowers and adorable unicorn kitty cat. 3rd birthday gift for girls who love cats. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!