Ormsby guitars out of Australia created an 18-string guitar for YouTuber Jared Dines after Dines got scammed out of a 17-string guitar by Olson Guitar Works (long story) but as you'll see below, just because it has 18 strings doesn't mean it's a better guitar.... you gotta be able to play the dang thing!
If you wanna see a 14-string guitar that rocks, check out this video of Jimbo on his War Guitar