Snap-on cap for container

A snap-on cap for use with a container suitable for collecting dental amalgam, the container comprises a top surface comprising an outer perimeter;

• the top surface comprising an inlet port and an outlet port projecting outward from the top surface;
• and the top surface further comprising a rim around the outer perimeter of the top surface of the container;
• wherein said snap-on cap comprises an outer perimeter and further comprises a first snap-on cap port that is complementary in shape and location to the inlet port of the container and a second snap-on cap port that is complementary in shape and location to the outlet port of the container;
• said snap-on cap further comprises at least three snap joints equally spaced along the outer perimeter of the snap-on cap;
• each snap joint comprising a distal end;
• wherein each said snap joint comprises a cantilevered hook snap at its distal end,
• wherein each snap joint can engage with the rim around the outer perimeter of the top surface of the container;
• whereby, when said snap-on cap is placed over the container, and the first and second snap-on cap ports are aligned with the inlet port and outlet port, respectively, of the container, and downward pressure is applied to the snap-on cap onto the container, the cantilevered hook snap of each snap joint engages the outer perimeter of the top surface of the container and said snap-on cap mates securely onto the container.