Personalized Tacos On Y Days T-Shirt. Funny T-Shirt - White for taco lovers says I Only Eat Tacos On Days That End In Y. Carnitas, carne asada, street tacos, tortillas, cilantro and cheese. Perfect for taco night, Cinco De Mayo, anytime. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.