My parents lost one of my roof caps recently, so I modeled and printed some replacements. The tether clips into a slot on the back side, and is less prone to breaking than that little tab on the original ones.
Printed in PETG, but should work with PLA, but might get loose over time. Haven't had issues with my PETG printed ones. Print hexagon face towards the build plate.
The author marked this model as their own original creation.