Expandable Closure
What do you think this thing is? It sort of looks like it could be the top of a bottle except for the expanding nature. That feature seems to hint at something else entirely. Thanks to one Reddit user, we now know it’s an expandable handbag closure. They come in a variety of styles and sizes.
provided by constative.com
Imagine a bag hanging down from the outside of the expanded frame. It would cinch open or closed like a pouch with a string closure. An odd and interesting find, a handy person could repurpose this and use it to make themselves a new purse or perhaps a pouch to keep dice in.