Well, holiday season is approaching for most people, so in order to get people in the spirit of the season, why not sport a new holiday themed avatar? It can be anything really, as long as it spreads cheer and goodwill. :) You can easily just add chrismas stuff to your current avatar by going to www.picnik.com
Because not everyone celebrates Christmas, I scowered the google for some possible dog avatars for people who celebrate other holidays:
Kwanzaa dog anyone?
or Chanukah dog ?
(Those pictures are not meant to be offensive).