Plastic Bottle Rings

So I am always trying to think of things to make from the blue bin~ I already make bracelets from plastic bottles but why not give a whirl at making some plastic bottle rings? Here's a few that I came up with. Let me know what you think!
Just incase you haven't seen my bracelet's here's one it can be found on my etsy site for sale www.RadicalRecycks.etsy.com.