Nothings better than an unexpected laugh. The best time for an unexpected laugh is right after a moment of disappointment.
Now I’m not saying a 404 error is known to cause mass depression! When you make a custom 404 page for your site you show your visitors that you care enough to pay attention to the little things.
So, I present some great 404 pages. If I missed any that you like, leave them below in the comments. I love to see new ones.