Personalized Ecologist Gifts For Kids Toddler Long Sleeve T-Shirt. My Mommy is the Worlds Best Ecologist Toddler Long Sleeve Tee - White has a worlds best occupation logo for the son or daughter whose Mom is an ecologist. Fun ecologist baby shower gift idea. 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.