Someone asked me yesterday how to get cute little symbols in their tweets. This applies everywhere and not just on twitter.
There are many sites that will give you a bunch so you can copy them. That's an easy and quick way to find them.
If you have a Mac, this is the best way to find them...
1. Go to your System Preferences and select International
2. Under the Input Menu tab, turn the Character Palette on
3. An Australian flag (for us Aussies) will appear on the right-hand side of the menu bar. Under that is the option to Show Character Palette containing all the possible symbols
4. You can insert from the Character Palette in to any text box or document. Now go and annoy everyone to death with pictures instead of words ☻