Well, the Rascal Snowpieces are used to summon the Snowman!
After you have collected some Rascal Snowpieces, head over to Happyville and find my buddy Simon!
Talk to him and he will warp you to a special map. Walk over to the right and you will find my other buddy Happy and the Snow Machine.
Talk to Happy and you will be able to fill the Snow Machine with snow, and it will even update in real time!
After filling it with enough Snow, machine will start spewing out snow and the Snowman will be spawned in the map!
The Snowman has three different phases that you have to beat in order to gain a prize. Do take note that there is a set damage of 10 Damage per hit.
Think it will be hard with only 10 damage per hit? Don't worry my friend! This event is worldwide, meaning all players can help submit snow and kill the boss! You will know when the boss is spawned with this world message:
Once the boss is killed, all players within the Boss Map will receive a prize.
Within this box, you will receive 1 King-Sized Star and another randomized item. There is even a small Snowman Set that you can collect!