You can buy it at DashboardMohammed.com.

Tnx to All Things Conservative.

UPDATE:  Well, that didn't take long.
"No depiction of the prophet, even if it is positive, should be made ever - and certainly not one as ridiculous as the bobblehead Muhammed," said Zvi Ben-Dor Benite, an assistant professor at New York University. "I don't think it's about freedom of speech. This is the freedom to insult, which he shouldn't be doing."
Wrong.  Freedom of speech is exactly about saying stuff that is going to upset someone.  If you don't like it, get out of the country.  Oh wait, I see he's at NYU, so he's already out of the country.

Here's my favorite part, from a different NYU goon:
"Jews and Christians have gotten used to this kind of thing, but Muslims haven't," he said. "This may not be his intention, but these things have consequences."
It's okay to ridicule and harrass Jews and Christians, because we're used to it.  Well, Frank, some of us are pretty much fed up with it.

I wish someone would come up with an Islamic Rage Boy bobblehead.  Now that would be really cool.