Personalized Professional Eggineers Toddler Long Sleeve T-Shirt. Eggineers are engineering eggheads. Society of Professional Eggineers text with an egg carton of engineering eggheads will tickle the funny bone of your engineer at birthdays, holidays and graduation. 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.