Lumos bicycle helmets have a handlebar attached remote for indicator and brake lights.

To prevent it from theft - and to charge -  it's detachable. I remixed this design to streamline it a bit more:

• Edges not so much  protruding and following the line  of the remote
• Smaller loop for attachment to a ring
• Hinting ‘L’ and ‘R’ for easier attachment of the remote, as locking mechanism is asymetrical

If your setup  is good in bridging, try without supports.

Printed in PLA at 0,2mm layer height

Personally printed first and last layers colour coded, for easier recognition among family members.