Personalized 3rd Birthday Teddy Bear Youth T-Shirt. 3rd Birthday Teddy Bear - A cute stuffed teddy bear is throwing a birthday party with balloons, noisemakers, confetti, and a birthday party hat. Cute gift for your little 3 year old! 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.