A retention system includes a structure clamp to connect the retention system to another structure; and a manifold clamp connected to the structure clamp, the manifold clamp including a trough to receive a pipe, a plurality of tube clamps with split cylinders extending through the trough, a collar to clamp around the pipe, and a spring to bias the trough from the collar. The method provides a semiconductor surface. The hook is connected to the key-ring loop by the curved bridge, which allows the edge of the clothing pocket to smoothly move against the key-ring loop and into the hook. A secondary, generally linear transverse segment of the wire returns in a direction toward the ear lobe, centering the earring directly below the middle of the wearer’s ear lobe. Sealing flaps extend along the shelves for sealing the label within the cup.