Lili Krakowski on mon 1 sep 08
Without denigrating Randy's ingenuity, it seems to me I saw an
article on such a tool-- I think Korean.
A largish cylinder of wood--much like a rolling pin with the
lower end rounded--was mounted on an arm
that in turn was attacked to a 2"x2" or similar attached upright
to the wheel table. The arm moved up and down so that the
potter, using both hands, could push the "rolling pin" into a
lump of clay to open it--release it and push it to the side.
I was much inclined to build one--but knowing myself I knew I
would clunk myself in the head with it and knock myself out!
Be of good courage