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

fa-jpy · Unicode: f157 · Created: v3.2 · Categories: Currency Icons · Aliases: fa-cny, fa-rmb, fa-yen

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

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

Looking for more? Check out the examples.