Personalized Happiness T-Shirt. Happiness is a cup of cats. Pink polka dot cup overflowing with cute hand drawn cats and kittens. If coffee, tea, or kitties all give you a warm and fuzzy feeling, then this is for you! 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.