Go to www.google.com, type in "weapons of mass destruction" and click on the i'm feeling lucky button.

I still like vL's 404 page :)

http://cold-chaos.net/404

gg

There used to be a site that had the 404:
"As you're looking for a page, you stumble into the basement, where there's piles and piles of boxes. Perhaps the page is in one of the boxes... do you with to open one of them?"
I forget which site said that, though..

http://www.homestarrunner.com/404

!~!HaZaRD!~!

noodlez.org had the best 404.. it was a flash animation that said something like
"well how the fuck did you get here? it started with a click, then click click click click, and now your here. but you sohuldnt be here! because it doesnt exist! so fuck off"