I stumbled upon a great collection of smileys on this website. It includes a lot of the ones we already have here, and some interesting variations.

I especially like this one which I suggest be coded as ":peternorth:"

and ":benenglish:" (not that you can actually tell the genders)

Tony, any chance of getting some of these? Could we just "borrow" them? Are smileys assumed to be in the public domain?

This one is fucking cool.