Given the zeal of Ron Paul supporters, I don't imagine there's much in terms of campaign swag that hasn't been produced with the Paul name on it. That said, the google doesn't show me any Ron Paul presidential campaign rolling papers. As far as I can tell (and please correct me if I'm wrong), the only candidate so bold so far is Gary Johnson:
Via Dave Weigel.
For those of us who allow spare mental resources to dwell on fanciful #MaddowSwagIdeas, yes, custom rolling papers is a thing. And guess whose campaign ads are all over the site of the company that makes them.