Crafters, can you help?

For our reception we're going to have some yard games, and one of which is going to be a ring toss game. We have long neck wine bottles we're going to arrange in wooden crate boxes... For the bottles, I want to paint some navy blue and some a metallic rose gold. What kind of paint would be best to do this, or should we find spray paint colors we like and do a finishing spray over top? I've done some crafty things before, but not much involving paint! Thanks for your help 😊
Bonus question: what could we use for the actual rings that would tie in to our rustic-y theme? Thoughts on some of those diving rings (cheap on Amazon) wrapped in burlap sections to cover the colors?