thought i would reply to myself he he.
my set back in the eons of time were plastic, but i have used wooden and metal versions the metal version being a lota bowl as well
it depends on who you present the trick its not great for close up and takes a lot of practice and your relient on physiscs most of the time.
that said you get what you pay for, so you have to decide do you want to make it a feature of your act or just a filler and buy accordingly.
i give this a difficulty rating of 7, 10 being the hardest card/coin slight in the world 1 being its all done for you.