Personalized Las Vegas Stays At Grandma's Youth Long Sleeve T-Shirt. Funny Las Vegas Youth Long Sleeve T-Shirt - White for kids and grandmas says WHAT HAPPENS AT GRANDMAS HOUSE, STAYS AT GRANDMA'S HOUSE. Cute gift for any grandchild and fun for Grandma too! youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)