Personalized THREE-I-E-I-O 3rd Birthday Youth T-Shirt. Fun farm theme 3rd birthday Youth T-Shirt - Heather with a big red barn, a cow, pig, rooster and tractor. Text says I'M THREE-I-E-I-O. Perfect for kids who love Old MacDonald. 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.