Well, I couldn't take it any longer. I don't have any silver nitrate yet, but I do have eggs in the fridge and I have salt and I have water and I have acetic acid, so I "borrowed" my sweethearts Kitchenaid mixer, got her to teach me how to separate yolks and then I had at it.
It took about a minute to start a nice froth, and I left it whip for about three minutes until I could turn the bowl over without any falling out, covered it up and put it into the fridge to settle.
Further reports to follow ....
This is exciting ....
I wonder if it will settle faster if I watch the bowl ...