Eco friendly spray adhesive and fake snow powder? Or something else that can be easily found in our little city?

Ok! I give up trying to find this stuff on my own, heh.

Anyway, I built my wife a large outdoor miniature diarama for Christmas and I'm wanting to do a winter theme for her opening (the door), and I'm rather stumped on these.

So far, the best solution I found was snow powder/flakes and spray on adhesive, but I'm definitely open to something else (that's not overly costly, 🤷‍♂️. I spent a looooot on this so far).

It will have a dirt base, so the snow needs to adhere to that as best as possible.