So the kids have been stuck inside the house because it is too cold to play outside. 
Why not have a snowball fight inside, using newspapers? Simple take old newspaper
pages and crumble them into a ball. Rules are to always aim below the person's head.
This can last as long as you want, and is a healthy way to release pent up energy. 
Wash hands with soap and water afterwards.

Devon, Mom of 2
New Hampton, IA