How do I make homemade snow to paint on wood?


Am painting wooden ornaments & need to make snow (dimensional) to paint on wood, chalk etc. EX: if make a wooden snowman, how to I paint on him/her snow to make his figure to look like snow? Sure would be a big help. Stores have it but we live quite a distance and cannot go there everytime we need to & need to paint large area. Thanks for any suggestions.