Personalized Cute Kawaii Ketchup Toddler Long Sleeve T-Shirt. Funny matching ketchup and mustard theme Halloween Toddler Long Sleeve Tee - White with cute Kawaii bottle of ketchup. 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.