Personalized Little Engineer T-Shirt. T-Shirt - Light Blue with a cute little railroad engineer wearing overalls, cap and red bandana. Red text says LITTLE ENGINEER. Graphics by JW Illustrations. Everyone loves our Custom T-Shirts! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.