The Rock Ock 8 Necked Guitar
I don't know about you, but 1 guitar neck just doesn't seem to be enough for me. I'm a two or three neck minimum kinda guy. These 8 dudes take it a step further and pretty much gang bang this 8 necked guitar.
Okay, so the song isn't exactly metal, but if you appreciate guitars, you've gotta be impressed with this. I guess there are guitars with more necks, but they aren't playable. This is the first and only of it's kind and is now in the Guitar Hall of Fame.