Personalized Polka Music Matters Newborn Layette. Funny novelty Polish, German, Czech polka dancing Newborn Layette - Light Blue with accordion graphic says POLKA MUSIC MATTERS. Gifts for polka lovers, oompahpah, squeezebox players, polka bands and festivals. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months