There are two ways that you can get ingredients to make fake polymer snow. You can purchase insta snow at craft stores or you can collect sodium polyacrylate from disposable diapers.
This is one of the coolest products I’ve seen. All you need to do is add water to the powder and immediately make slushy snow. Keep adding water until you have the desired amount of wetness. The gel will not dissolve; the children can decide how mushy they want their snow to be. It will last for weeks.
Insta snow is safe to handle, non-toxic and guaranteed to amaze children. I have been fascinated with insta snow ever since I first saw a Steve Spangler's workshop, ten years ago!