Personalized 2021 Kiss My Class Goodbye Toddler T-Shirt. Kiss My Class Goodbye! Say goodbye to the class of 2021 with a kiss. You know where. Funny gift for your graduate. 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.