Personalized 4th Birthday Turtle Youth T-Shirt. A cute little turtle jumps for joy for its giant birthday cupcake with sprinkles and a 4 candle on it. Adorable 4th birthday gift. 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.