I absolutely loved this demo. I learned hands on, but so many people ask me how i do it. I am great to demonstrate.. but to explain it so thoroughly as you have! Great job! and Thank you for taking the time to show everyone.
"This is where I start stopping." That is something to hang over your work place. Thanks. the way you wedge cleared up a lot of why I could not get it to work that great.
I have 10 kg of ready-marbled clay laying around to try. I think I am going to try throwing it, even though the dealer said that wasn't a good idea :-) Thanks so much for the inspiration!
Did you mention the two clays need to be temperature compatible [each fired at the same cone]. If not temp compatible there can be trouble in the kiln. A low fire clay can melt out before a high fire is done.