Personalized Mining Eggineer Drawstring Bag. 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. A durable and versatile cinch bag built to handle daily use. . With its lightweight design and reinforced corners, this pack is perfect for the gym, travel, or everyday activities.