You can get snow balls to throw in the center square of every zip-code in towns. There is a shack next to the frozen lake that you can pick 40 of them up for free. They disappear after you log out of towns. In previous years, events have given you items such as water balloons that you can throw. This items are actually in your inventory on Gaia. You can access them in towns by opening the toy bag.
In the future please post all questions in the Questions and Assistance subforum of the guild. You can find rules for correct thread placement in the
NSTG Rules and Information Thread in the main forum of the guild.
Hope that answers your question!
~Avianflame
NSTG Crew