Personalized Fire Truck 3rd Birthday Boy T-Shirt. SOUND THE ALARM fire truck 3rd birthday boy T-Shirt - Black with a cute boy firefighter driving a fire truck and his Dalmatian dog. Number 3 on grill. BIRTHDAY BOY on license plate. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.