How do you make this awesome marbled pieces? How well wedged is it before you throw it? What does the clay look like when you first put it on the bat, before starting the wheel? Would you be willing to share a recipe for stain to clay ratio?

I usually start with bone dry reclaim clay and add mason stains or oxides. I do not have a specific recipe that I follow though depending on the color it usually ranges from 2%-15%. I can not stress enough the importance of researching the additives you use as many oxides and stains are heavy metals and can be dangerous to expose your self to for a prolonged period of time both through breathing them and through your skin. I then recycle the clay as I would any other clay.  I wedge each individual color as thoroughly as I can and then wedge different colors together as little as possible. I think that larger patches of individual colors look best so the less you do to it the better. Some pieces are hand built from slabs and others are made on the wheel. The last thing I like to do is use the sharp edge of a metal rib to remove all the slip that is on the surface to get a clean line where two colors meet.