A Pidgin smiley themed compiled from the Facebook smilies. The Facebook smiley codes all work, as well as some of the more common MSN ones. Let me now if you think I should add some codes.
To install, goto Tools → Preferences → Smiley themes → click "Add" and select the downloaded archive. You could also just drag and drop the archive on the smiley theme window.
These are of course proprietary, and I claim no ownership of them. Do with it what you want. I take no responsibility.