Personalized Birthday Girl Comic Book Toddler Long Sleeve T-Shirt. Pow! Wow! It's the Birthday Girl! Fun comic book style birthday gift for your favorite superhero birthday. 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.