Chain hanger-gadget
Has anyone ever seen one of these gadgets before and if so, where? https://photos.app.goo.gl/XhXFsTN4QiM9cSUg2
Forum Discussion
Or read this page that says twisting is totally fine.
http://sierrateardrops.com/article/twisting-chains-to-shorten-them
http://sierrateardrops.com/article/twisting-chains-to-shorten-them
