Personalized Musical Triangle Newborn Layette. The musical triangle disappear in it's complexity text with the image of a triangle is a humorous play on the Bermuda triangle and a funny gift design for percussionists, music teachers and students in orchestra and concert band. 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