Sorry I didn't get these up earlier.
I *think* - in fact, I'm fairly sure - that this particular snowman was downed on January 1 (at least in GMT-8). After some initial investigation that resulted in multiple casualties, an army was eventually assembled.
Ricke was the main tank. Most were either healers or nukers. And even with about 20 or so nukers, it took us a long time to take down this evil spawn of evil snow.
Still, the light show was pretty - and, of course, the sequel was a surprise to us all.
Rewards were much the same as other events - stacks of cats and generic materials.
Screenshots here:
http://picasaweb.google.com/forgoten...zomSnowmanHunt