If you like Font Awesome, you're going to love Black Tie!
             

fa-caret-square-o-left · Unicode: f191 · Created: v4.0 · Categories: Web Application Icons, Directional Icons · Aliases: fa-toggle-left

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

fa-caret-square-o-left
<i class="fa fa-caret-square-o-left"></i> fa-caret-square-o-left

Looking for more? Check out the examples.