Natural deodorant?

[danipoop.livejournal.com]

Does anyone know how to make natural deodorant? Preferably in a solid bar type form, like what they sell at Lush. All I’ve been able to find is powder and liquid mixtures, neither of which I want (though if you do, click here). I keep hearing bad things about the stuff they put in deodorant and antiperspirant, so I figured it was time to try something more natural.
Thanks in advance! :D