A fastener assembly for securing a string and/or netting includes a cord fastener and a cord. A cord fastener includes: a body including a base wall; a clasp disposed on the base wall; and an opening disposed on the base wall and spaced apart from the clasp. The base wall has a curved surface between the clasp and the opening. A cord is detachably coupled to the cord fastener and extends through at least one of the clasp or the opening.