Personalized Halloween Little Devil Toddler Long Sleeve T-Shirt. Adorable little devil Toddler Long Sleeve Tee - White. She's cute as can be, but also mischievous. Great for a Halloween costume or any day you're feeling devilish. 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.