Personalized Mustache Mommy's Little Man T-Shirt. With Mustache Mommy's Little Man, you can find the perfect gift for the mustache-loving mom or baby in your life. From onesies and t-shirts to bibs and hats, our products are sure to bring a smile to anyone's face. Shop now and let your little man stand out with our adorable mustache designs. 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.