Personalized Chemistry Cooking Cute Toddler Long Sleeve T-Shirt. Chemistry is like cooking. Just don't lick the spoon! Cute kawaii spoon and flask make a great gift for any chemistry student or professor. 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.