Take your icon game to the next level. Check out Fonticons, from the maker of Font Awesome.
             

fa-header · Unicode: f1dc · Created: v4.1 · Categories: Text Editor Icons

After you get up and running, you can place Font Awesome icons just about anywhere with the <i> tag:

fa-header
<i class="fa fa-header"></i>

Looking for more? Check out the examples.