Personalized Nano Eggineer Youth T-Shirt. Eggineers are engineering eggheads and this humorous egghead with a magnifying glass and nano eggineer text will tickle the funny bone of your engineer at birthdays, holidays and graduation. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.