Personalized Mermaid Princess 4th Birthday Toddler Dress. 4th birthday Toddler Dress - Red with Polka Dots with a beautiful little mermaid princess wearing a crown atop her red flowing hair and surrounded by cute fish and starfish. Text says THIS LITTLE PRINCESS IS 4. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!