@DanRogers the newer version is now uploaded. It still is not entirely storm proof, so I'll have to keep iterating some more.
@DanRogers The flag is supposed to be attached by the carabiner end. The zig zag was intended to clip on to the rope hosting the flag. Unfortunately, that part proved unsatisfactory in actual wind conditions (not having a wind tunnel in my basement, I was unable to test in advance), so I had to redesign it. I’ll upload an updated version soon.
Going to try them out. I don't understand the ziz-zag in the back - is that the part that holds the flag?