Personalized Happiness Is Toddler T-Shirt. Happiness is a new scrapbook with a heart dotting the letter i in the word happiness is a unique scrapbooking gift design for birthdays and holidays. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.