Personalized Mommy is my Valentine for Son Toddler Long Sleeve T-Shirt. baby boy Valentines day idea has black and white checked heart and quote saying Mommy is my valentine 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.