Personalized Kawaii Mustache Heart Toddler Long Sleeve T-Shirt. Cute Valentine's Day Toddler Long Sleeve Tee - White with distressed pink heart kawaii eyes and big handlebar mustache. Novelty gift for mustache lovers on Valentine's Day. 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.