Wanted to replace my rain fly on my rooftop tent to reduce some weight about 3kg, had a tarp that fit on top so had to mount it to the existing places, I decided to just create these buckles that allow me to use some rope to mount the tarp.

This was created on onhsape so you are free to make your own here: https://cad.onshape.com/documents/3d4be01e9c48646d427cd15d/w/0960f142016632fc4ca9ffdf/e/fbdf9a27abf43b2cf6d31ff9

Printed in PETG to allow enough flex.