Gaming and Virtual goods are a bit different. This is why all items in the game have an intrinsic value, this allows us to prove the worth of anything in the game. This then allows us to make various offers on items, like the one you cite.
You always have the opportunity to use the emojis we used before the pretty graphic ones were made available:
:+) for
:+( for
:+D for
:+p for
o_+O for
and you can add a wink by using a semicolon instead of a colon