Garkov

Other Markov toys:
Previously, on the X-Files...
The Big Markovski
Jesus Markoving Christ

Garfield is a comic strip by Jim Davis, who seems like a pretty good guy.

A Markov chain is a probabilistic model well suited to semi-coherent text synthesis.

Garkov is an application of the Markov model to transcripts of old Garfield strips, plus some extra code to make it all look like a genuine comic strip. Feel free to screenshot and share Garkov output.

Josh Millard is responsible for this mess; he also has a blog and frequently does stuff. His current comic project is Larp Trek, in which the crew of Next Generation plays a roleplaying game called Deep Space Nine.

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Garkov
CHICKEN, YOU AND I ARE GOING TO KICK ODIE OFF THIS TABLE YOU'RE BIG, YOU'RE BEAUTIFUL, AND PEOPLE LOVE YOU AND THIS MUST BE ONE OF TIME TO EAT

Other people have made weird Garfield-related things, including: Garfield Minus Garfield - Lasagna Cat - Garfield Variations - Barfield - Permanent Monday - Arbuckle - Garfield Randomizer - The Death of Garfield - Nothing Garfield - forum weirdness - Garfield's Comic Creator - Garfield Generator 2

Some further reading: Comics Curmudgeon on Garfield - Comic Strip Doctor: Recontextualization - Comic Strip Doctor: Garfield - Newspaper Comics and their Enemies