Personalized Firecracker 3rd Birthday Women's Plus Size T-Shirt. Cute Women's Plus Size T-Shirt - Vintage Red 4th of July 3rd birthday design with a big blue number three firecracker filled with red and white stars and star burst. Perfect for 4th of July third birthdays! 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)