Snowball

Snowballs were projectiles used during the 2006 Christmas Event. A user could get as many snowballs as he/she wanted during the event, but once they leave Karamja, the area of the event, the snowballs disappear, causing them to be both discontinued and extinct after the 2006 Christmas Event ends. However, snowballs can only be used against a gublinch, and it would unequip the snowballs if you tried to attack anything else.

Snowballs can be retained after completing the event, by dropping them before filling the last cage and picking up after claiming the reward, but they have no further use and will probably melt when the event is over.