Try http://www.momentum98.com/

Actually, I'm planning on using the clay on my face later today. I haven't yet...not found the time/motivation, probably because I'm more interested in letting it develop as it will and I'm more amused than horrified to stop it, but as long as it's not getting better, a little helping it along tonight probably won't hurt. I used the Rhassoul every other day during my last MC and had more fabulous skin than ever (well, since I can recall.) You put more water to it than you might think, as it really does expand and make oddly textured, almost soapy silky stuff. And it dries quickly on the face. Very nice. I think it was like $14 a jar, or something like that, not over $20 anyway.