Personalized Tractor Boy 3rd Birthday Women's Plus Size T-Shirt. Fun farm theme 3rd birthday Women's Plus Size T-Shirt - White with a tractor pattern big number three and cute farmer boy in overalls riding a tractor. EIEIO! Perfect for kids who love Old MacDonald. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)