Personalized Mechanical Eggineer Women's Plus Size T-Shirt. Eggineers are engineering eggheads and this egghead with gears in hand and on it's hard hat with mechanical eggineer text, is a humorous design to tickle your mechanical engineer's funny bone at birthdays, holidays and graduation. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)