Personalized Civil Eggineer Youth Long Sleeve T-Shirt. Eggineers are engineering eggheads and this funny egghead with a transit, hard hat and civil eggineer text, will make your civil engineer smile. A fun design for birthdays, holidays and graduation. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)