Personalized Mechanic Zombie Fighter Youth T-Shirt. Mechanic I fight zombies in my spare time is a funny gift design for auto technician gamers at back to school, birthdays and holidays. What would this world be like without them? 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.