Personalized Mining Eggineer Women's Plus Size T-Shirt. Eggineers are engineering eggheads and this humorous egghead with a shovel, a handful of rocks, a hard hat and mining eggineer text is a humorous design for mining and geological engineers at birthdays, holidays and graduation. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)