Nice Idea. But I still vote for a smiley icon as well. It can either open a pop up window or list on the bottom side of editor as in Xenforo.
Any chance we can get more icons in the default icon sheet....
Noticed particularly there was no 'help' type icon, maybe a question mark in a black box. Or some such help icon.
Also maybe a country flags list of icons, black and white or just coloured
filter:icons.gethook for icon plugins / themes?
Edit: Nevermind. Wrong icons.