Further proof that the internet is absolutely awesome: A site called Lawn's and Life, which focuses on lawns all over the world, has some pics of an obviously mentally-balanced Ohio State fan's lawn.
The real clue that this guy's an Ohio State fan is actually not the lawn designs. It's the propane tank and 1971 camper that give it away. And the crappy house. By the way, I wonder what would happen if that propane tank blew up. Not that I'm suggesting anything.
Now, in all honesty, this Ohio State fan isn't anywhere nearly as nuts as this one, but I'd at least put them in the same ballpark.
I think it's also worth noting that LSU fans have done similarly crazy things with their lawns.