Patina...How to???

I think it depends on what it is. Older stuff like early 60s and back can look cool with the rat rod look. If I was going to "showcase" rust, I'd showcase it. No coating, no nuthin. It's not like it's gonna fall apart in your lifetime. IMO there are VERY FEW exceptions to something looking good that way. Especially with stuff about 64 and over. I will say I kinda like @A56's ride. It's kinda cool lookin. But it's an exception. My own Vixen is like that, but I'm not crazy about it. Soon as I can get it into epoxy primer, I'm gonna do it.