These window snowflakes remember me of the folded spirals and the tesselation, but they are more Christmas-sy :)
Links:
Window Snowflakes (White Snowflake Stars)
via: 4 White Snowflake Stars for Winter and Christmas Decorations
via: 4 White Snowflake Stars for Winter and Christmas Decorations | Waldorf Window Stars
Here at unikatissima:
Folded Spirals
Tesselation