Personalized Let The Shenanigans Begin Toddler T-Shirt. Funny St. Patrick's Day Toddler T-Shirt - Heather and Royal with shamrocks says says Let The Shenanigans Begin. Perfect for St. Paddy's Day parties and Irish parades. 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.