From Islamic sources:
Holy Prophet Muhammed (saw) smiled often and would make jokes with members of his community. For example, an old woman came to our Holy Prophet Muhammed (saw) and said: "O Messenger of Allah, pray to Allah (Subhanahu Wa Ta'ala) that I will enter Paradise." Holy Prophet Muhammed (saw) said jokingly, "O Mother of so-and-so, no old women will enter Paradise." The old woman went away crying, after hearing from Holy Prophet Muhammed (saw). Then Holy Prophet Muhammed (saw) sent one of his companions to tell her that, she will enter Paradise by becoming a young lady, because the Paradise is for only young people.
In another rivayah (narration) by Jabir, the Prophet was pretending to be a camel and his grandsons were riding on his back. He was walking on his hands and feet and made a compliment to them: "How wonderful is your camel and how wonderful riders you are!"
In a rivayah from Aisha she narrates: Once the Prophet and I were on a journey. I was thin back then and I was not fat. The Prophet told the people around him: "Go ahead. We will catch you." When we were left behind far enough he told me: "Let's race!" We raced and I won. He did not mention it again until I gained some weight. Meanwhile I completely forgot about this incident. During another journey he told the people around him to go ahead. When they went far away, he said to me, "Let's race!" This time he won and started to laugh saying "we are even now."
So I wonder what he'd think about his portrayal on South Park... I mean the original version probably did not make any old ladies cry, and was probably a lot more dignified than the other religious figures presented... (click image for video)

Of course that episode aired a few months before 9/11, and no one made a big deal of it. The idea of making jokes or even portraying Muhammad has since become the last taboo of comedy - which, if anything, only sends the message of how effective terrorism / violent resistance can appear to be.
Last week's episode of South Park was a brilliant comedic analysis of restrictions on satire and free speech in general, and, like clockwork, it resulted in death threats against the show's creators. The second part of the two-part episode airs tonight.
It is precisely that reaction, not anything personal against the historical figure of Muhammad himself, that is the legitimate cause for all freedom-loving individuals to jump on the "Prophet Muhammad Jokes" bandwagon. This is our "I'm Spartacus" moment! This is their Prague Spring!
So then...
Did you know that scientists finally found the DNA of the Dodo and can finally clone it out of extinction? They found the DNA in Medina, buried under a mosque!

Edited by Alex Libman, 21 April 2010 - 06:48 PM.