PreK Christmas/Winter: Snowman Names - Another idea would be to use the circles or "snow balls" to measure how many snow balls tall you are. Everyone in the class could be measured. Cute Winter Craft for preschool!
Art Projects for Kids: Snowflake Art Trading Cards. Punched snowflakes glued to painted watercolor paper. Love these - even little kids could do a series of these in diff winter/Christmas themes, and could gift them to mum and dad as gift tags:)