Abstract: Implementations of paddles may include at least one paddle blade coupled to a shaft, a sleeve coupled over the shaft, the sleeve including a helical opening, a locator pin coupled to the shaft and extending through the helical opening, and a first handle fixedly coupled to the sleeve. The paddle blade may be configured to rotate from a first position corresponding to the locator pin positioned at a first location in the helical opening to a second position corresponding to the locator pin positioned at a second location in the helical opening.

Abstract: Implementations of paddles may include at least one paddle blade coupled to a shaft, a sleeve coupled over the shaft, the sleeve including a helical opening, a locator pin coupled to the shaft and extending through the helical opening, and a first handle fixedly coupled to the sleeve. The paddle blade may be configured to rotate from a first position corresponding to the locator pin positioned at a first location in the helical opening to a second position corresponding to the locator pin positioned at a second location in the helical opening.

Abstract: A grommet like device including at least three layers that can be attached to a larger flat surface to allow a cable or other object to move perpendicularly through a hole in a movable fee floating layer of this grommet like device, such that the cable or moving object can displace a freely movable portion of the grommet further in a direction largely parallel to the surface to which the grommet is attached, than a small opening or attachment in the center of the grommet, would otherwise allow without causing a lateral movement of the larger surface, substantial pressure or friction, or a larger unobstructed opening in the larger flat surface.