Try it out while it's timely. Maybe this would be a good change-of-seasons activity.
- The design process and snowflake showcase lend itself to using mathematical language and concepts, such as shape names, counting or more complex ideas such as center/perimeter.
- The message is a great little web publication opportunity (very motivating) and could be used for a language target. "When winter is over I will..." or "I will miss the snow because..."
- Locating peers' snowflakes provide a pragmatic context for commenting/complimenting, etc.