Mosaic posters are now a bit of a tradition for the advent calendar. This year we have a large version of the Zooniverse text logo made up of all the individual project avatars. You can download the full resolution poster here. See if you can spot all of your favourite projects!
Daily Zooniverse 
Um, not *all* the projects. Just the pre-Panoptes ones, no?
All with official Zooniverse avatars.