The Winter is Coming Hunt is a roleplayers hunt that runs until November 16th. There are approximately 60 stores participating and each item is 1L. The icon you seek is a snowball. Make sure you have a peek at their official blog for a prize preview to see if this is a hunt you’d like to take advantage of!
FabFree Coverage - http://fabfree.wordpress.com/2012/11/09/winter-is-coming/
Be sure to check out our SL Hunts Page at the top of the blog in tabs for a list of current running hunts!