OK, I know that the Mythbusters didn't invent this idea, but that's where I heard about it.
Step 1: Have some rusty chrome.
I'm sad to say that I've been a bad daddy to my little bike. These pipes were new a few years ago. The originals were completely rotted out, so I got these replacements on e-bay. Par for the course with aftermarkets the chrome ain't that thick.
It doesn't help that I haven't so much as pulled the cover off for weeks at a time.