Personalized Yay! 61 Fun White Toddler Long Sleeve T-Shirt. Yay! 61 and ready for fun in white text in a decorative white swirl is a fun design for friends and family at birthday time. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.