Lol. Well all the ones you see are all the Foster's smilies CG has made - a total of 17. As far as I know the only one we were "never able to use" was the laughing Bloo, which was available only as a thread icon and not a smilie. (If you selected the yellow smilie with the open, laughing mouth when originally creating a thread you wound up with the laughing Bloo - he just didn't show up as Bloo in the menu).
So welcome!
