If earrings The person would have to have some serious lobes the springs are real strong .
Never thought of that .
I'm still thinking something for Veterans . Clip on a collar , But it would be on the right side . Just a thought .
Fat people's belly buttons jewelry? *guessing*
"Much that once was, is lost. For none now live who remember it."
I think their called bachelor's buttons.The clip is designed so the buttons can be easily removed from the uniform for hand washing.
I think the design comes from British service in India where the dhobi-wallah, washing help" would remove the buttons before hand washing the garment by beating it on a flat rock or similar hard surface.