Personalized Best Teacher Ever Toddler Long Sleeve T-Shirt. Best Teacher Ever! Pow! Ka-boom! If you know a teacher who is a superhero, this is a great gift for them! Let them know they are the best teacher ever! 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.