I treated myself to an evening of throwing big jars. I had decided a few years ago that even though I love making jars, they weren't an efficient use of van space for an art fair potter.
Heck with it. I like making jars.
I did, however, start by trying to make them out of the domestic porcelain I've been using. No dice. The stuff -- even stiffened up -- will not make anything of any size. Too flabby. Pull it up 15 inches and you can watch it slump back to 12 before your very eyes. I gave up and went back to my beloved stoneware.
The one porcelain jar I kept is going to be faceted. When clay cheats you, you cheat right back.