Personalized Civil Engineers Road To Happiness Youth T-Shirt. Civil engineers build the road to happiness with images of a road, rocks, trees and sun is a funny gift design for civil engineers and engineering college students. 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.