I ordered from SPM quite a while ago. While they have changed their
website (www.goldgranules.com), I am pretty sure that they still
sell the granules in fine silver and 22k gold. Call them if you have
not already. If you need silver, I may be able to sell you some of
mine. I have probably 1/8 ounce left (a guess) in the medium size.
They are extremely expensive.
It’s not hard to make them. If you buy 30 guage wire, you can wrap
it around a square wire- I use a bobby pin. Then cut down one side to
make tiny jump rings. This way you have the same amount of metal for
each granule, which gives you granules of all the same size. Melt
them with a torch on a charcoal block.