I imagine most Lee Oskar songs are played on Lee Oskars. I don't know how old Lee Oskar's solo was that got sampled in that Kei$ha song, but that might be on a LO. Bad News Brown never made it huge, but he was getting some traction before he was shot. He played LO's.
My understanding is, historically, Seydel has been stronger down in Australia (what with the boomerang and all) so maybe some Australian harp music?
I imagine a lot of cold war stuff from the other side of the Iron Curtain might well have been played on non-Hohners, but I'm not real familiar with Eastern European or Russian harmonica (except for a few excellent forum members).