a clam - shell container system can include first and second container pieces that are hingedly connected . the first container piece can include a perimeter and a hangable tab , the hangable tab having an opening configured to receive a rod . the hinge connection can be perforated , such that it breaks upon actuation of the hangable tab to open the container system . the second container piece can include a cutout in proximity to the hinge connection and the hangable tab . accordingly , the cutout can provide clearance for the rotation of the hangable tab beyond the hinge connection . further , the second container piece can have a perimeter having a shape substantially similar to the perimeter of the first container piece . the perimeters can form a substantial seal in combination .