The first thing I thought when I saw the example that you linked to was that this would make an awesome clock!
I’ve never tried this myself, but I hear making a DIY clock is simple, quick, and easy. And there are plenty of “how-to“s on how to do this. Essentially, all you need is a movement mechanism with cool hands and some basic supplies/tools, and you’ve got yourself a one-of-a-kind wall clock!
If you’re not into that idea, I would simply hang it up on the wall or display it on a shelf using a plate stand, since it seems that it would be really beautiful on its own.
If you’re worried about the rust, I would back it with something before hanging it on the wall or placing it directly on furniture.