I met with some armor modelers from my IPMS Chapter. They brought some samples of materials for ideas for snow.
One was "Snow Wonder" from
http://www.seasonsofcannonfalls.com which requires the addition of a little water to it to mak eit fluffy. However, it does not solidify enough or stay intact and looks like it will blow away or crush under the slightest touch.
The second one was "Snow-Coat" and "Ice-Coat" from SmallShopEU.com (out of production and no web site anymore) with looked like it was going to be just right. It is very fine, has a sparkle to it and can be attached with white glue however, the crystal turned dark when it hit the acrylic paint on my practice ice. Weird!
The third option was Granulated Alum which the guy said could be found in the spice aisle at the grocery store. This is very, fine and is probably what I'll go with for the snow effect.
I've been practicing with the floating ice effect that Jan Klarbaek did on his 1/350 U-Boat of which there is a "How To" on the modeling web site that is forbidden to mention on this web site.
Jan used melted down white decor (unscented) stick candles and poured it out onto a cookie sheet to the thickness that he wanted and then when it solidified, he broke it up into pieces for his dio.
My candle wax ice sheets are a little too, thin I feel. And the water that I thought was going to be the base for my model is probably going to be my latest practice water base unless I can pull it off, somehow. I've still yet to try the other effects that Jan used on his U-Boat; i.e. adding some acrylic gel, here and there, and adding tiny pieces of ice, here and there.
I'm not ready to show anybody my practice attempts, yet. Sorry. But, wish me luck anyway, will you?