Personalized Engineer Mom Mothers Day Engineering Toddler Long Sleeve T-Shirt. Worlds best Engineer and Mom Toddler Long Sleeve Tee - Heather has cute pink butterfly appreciation logo for a hard working mother on Mother'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.