Personalized 4th Birthday Fourth of July Holiday Cupcake Toddler Long Sleeve T-Shirt. Cute red white and blue birthday cupcake with number 4 for a 4th birthday comes on a Toddler Long Sleeve Tee - White 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.