Making Seamless Rings

Hi, I have a couple of questions.

I am looking for some on making seamless rings. how do
you cut the washers to gain a certain size? I have experienced in the
past with this group that you are all very passionate about books, so
recommendations are appreciated.

Second, is there a place where you can buy “silver and
platinum” and “gold and platinum” mokume game billets? I know Rio sells
sheet but it is leopard spots rather than wood grain.

I would really like to surprise my wife with a new wedding band that
I made my self.

Thanks, Richard there a place where you can buy "silver and platinum" and
"gold and platinum" mokume game billets? 

Try James Binnion