Personalized Book Lovers Gifts Unicorn Librarian Toddler Long Sleeve T-Shirt. Unicorn sits on a stack of colorful books on this gift for a bookworm, librarian, book lover. 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.