Personalized Big Bro Cute Lamb Brother Boys Youth T-Shirt. Cute Big Bro boy lamb Youth T-Shirt - Heather has sheep with blue curls and Big Bro announcement quote. 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.