I was never much interested in gazing balls until a friend told me that they were used in Victorian English gardens to ward off evil spirits. That made me think they are kind of interesting. Do they confuse the spirit?
Based on what I could find online, this sort of ball has been made in Italy since the 13th Century, and actual witch balls [stop it!] have loops on the top for hanging in the yard.
Anyway, there’s one on our walking route now that we’re mostly walking in the streets of our neighborhood rather than the trails.