Gift Shop › Centennial T-shirt Image 1 of 1 Centennial T-shirt from $20.80 Designed by Whitney Marr. 50% cotton; 50% polyester. Sizes Small to XL. Black with gold design. Price includes shipping. Size: Select Size Small Medium Large XLarge XXLarge Add To Cart Added! Designed by Whitney Marr. 50% cotton; 50% polyester. Sizes Small to XL. Black with gold design. Price includes shipping.