Holiday season 50 snowball feat - quick way

found a tip from here:

http://dcuo.mmorpg-life.com/2010/tips-tricks/dcuo-winter-holiday-feat-throw-50-snowballs/
DCUO Winter Holiday Feat – Throw 50 Snowballs




Posted on December 14, 2011 by Genius



With the latest DCUO event – 12 Days of Holidays, player can
complete new feat – Throw 50 Snowballs. The question is – How to
complete this feat?

First you need to collect snowballs. You get Snowballs by beating bosses. There are two ways to collect snowballs:

• The slow ways:
  You get Snowballs by beating
  bosses in Challenges, Duos, Alerts or Raids. You get about 2 snowballs
  upon completion. You need from 15-60 minutes for 2-3 Snowballs.
  
• The very quick way:
  Finish low level missions like Grodd, Lex Luthor, Dr. Psycho and you will collect a ton of them in 60 minutes!