Personalized Cinco De Mayo Cute Fiesta Pinata Youth Long Sleeve T-Shirt. Celebrate Cinco De Mayo on May 5 with this fun Youth Long Sleeve T-Shirt - Vintage Black featuring colorful lettering and funny pinata. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)