Dude there's rule 34 of everything. Just make sure you have your safe search on when you use Googel images if you don't want to see it.
Some of these guys and gals are pretty good artist. No sarcasm here I really mean it. Some of them get the character designs and colors dead on, it's kinda freaky it's almost like someone who worked on the shows or used to work on the shows decided to make these pictures. In fact I find it kind of depressing that people can't get past the porn aspect and see the art I mean these people have some amazing drawing skills imagine how much work goes into the more well done ones.
It'd be like some people not accepting some art in museums as art and labeling it as just porn simply cause it has nudity like some of those statues from ancient Greece. Is Rule 34 porn? Yes but some of it can also be considered art since some of them were obviously done by an artiest with real drawing or painting talent we wish we had, I know I wish I could draw like that, the most I can do it stick figures with people and if I were to try and draw say a giant monster it'd just look like a blob.
I mean I wish I could draw like this, some of these artiest get paid a decent amount of money. Don't worry it's safe for work, the guy does more then just rule 34.
That would make for a great design for a villain, this guy could make money just selling that design to a video game company.