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

fa-usd · Unicode: f155 · Created: v3.2 · Categories: Currency Icons · Aliases: fa-dollar

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

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

Looking for more? Check out the examples.