Personalized 2nd Birthday Rainbow 2 Year Old Toddler Long Sleeve T-Shirt. 2nd birthday rainbow for little girl or boy with Im 2 quote 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.