Personalized Mechanical Snowman T-Shirt. A snowman holding a gear and wearing a scarf with gears is a humorous mechanical design. Fun gifts for mechanics and mechanical engineers at birthdays and holidays. 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.