Here are the different combinations to make a snow globe in Alchemy 2.

blizzard + crystal ball
blizzard + glass
christmas stocking + crystal ball
christmas stocking + glass
christmas tree + crystal ball
christmas tree + glass
cold + crystal ball
crystal ball + ice
crystal ball + santa
crystal ball + snow
crystal ball + snowball
crystal ball + snowman
crystal ball + snowmobile
glass + santa
glass + snow
glass + snowball
glass + snowman
glass + snowmobile