Did you know that there are hidden Chat emoticons?

Currently all the rage in Google+ Chat is ~=[,,_,,]:3 , (the Nyan Cat...http://nyan.cat/ ) but there are others just as fun, like this mustache :{ (#movember anyone?)

And oh, there are more:
:3 (cat)
:(:) (pig)
:(|) (monkey)
V.v.V (crab)
-<@%(bumblebee)
+/'\ (cowbell)
[:|] (robot)
}:-) (devil)
\m/ (rock out)
<3 (heart)
</3 (broken heart)
>.< (wince)
:-x or :* (kiss)

Disclaimer: some emoticons work in all Chat clients, but some work in Google+/iGoogle/orkut only or Gmail only.