Ah, Jerry the Bellybutton Elf. What a guy.
The reason shows like Ren and Stimpy don't exist anymore is because the original was a freak of cartooning. It's creator was a sick bastard confined to the guidelines of Nickolodeon, and thus you had a comprimise of childish humor and adult humor in a blend that only Ren & Stimpy could provide. Fuck Spongebob or the Fairly Oddparents' little jabs at government and hollywood, R & S was the real deal.
And now that the FCC is being a bitch about programming for children and the major cartoon networks (haha, Cartoon Network) are tightening their regulations on content, you probably won't see anything like the original Ren & Stimpy for a long time, if ever again.
Either way, the perfect cube of fat and "Don't Wizz On The Electric Fence" were only a small fraction of that show's ausomeness. My favorite parts were Untamed World and Ask Dr. Stupid.