Personalized Babys 1st Fourth of July Unicorn Youth T-Shirt. Babys first 4th of July holiday Youth T-Shirt - White with adorable little unicorn for a baby girl Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.