Gimbal

[Donald Trump]

The dangly bits usually found between the legs of a male pirate!

[Lanell]

a device with a circular part that turns around a fixed central axis (= straight line) , used for keeping a compass, camera, or other piece of equipment in position when it is inside a moving vehicle or object:

[Agnes]

A mechanism, typically consisting of rings pivoted at right angles, for keeping an instrument such as a compass or chronometer horizontal in a moving vessel or aircraft.