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

fa-heartbeat · Unicode: f21e · Created: v4.3 · Categories: Web Application Icons, Medical Icons

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

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

Looking for more? Check out the examples.