Personalized Shamrock Music Notes Toddler Full Zip Hooded Jacket. A shamrock comprised of green music notes is a fun design for family and friends during the March holiday of St. Patrick's Day and Celtic festivals. 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.