Abstract: Methods and devices for adhering and securing a tether to a surface are provided. A suction device comprises a base having a top portion and a bottom cavity, a lever, and a flexible suction skirt. The lever has a bottom end, a cam element pivotally coupled to the lever's bottom end and traversing the base's top portion, and at least one cleat along a side of the lever for capturing a tether. The skirt is disposed within the base's bottom cavity and is coupled to the lever's cam element. Closing the lever from a vertical to a horizontal orientation relative to the base causes the cam element to pull the flexible suction skirt to deform the flexible suction skirt, applying suction on the surface and simultaneously moving the cleat horizontally with respect to the base to cinch the captured tether.