Personalized Shamrock Music Notes Light Greens Baby Beanie Hat. A shamrock comprised of green and yellow music notes is a fun design for family and friends during the March holiday of St. Patrick's Day and Celtic festivals. This Baby Cap is a soft and comfortable essential for keeping your little one cozy. Made from 100% combed ringspun cotton jersey, this lightweight and breathable cap is perfect for newborns and babies. Designed with stretchy fabric for a snug and secure fit, it provides gentle warmth without causing discomfort. The classic, simple design makes it an everyday must-have and a thoughtful baby shower gift. Available in a range of colors to complement any baby outfit.