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

fa-mars-stroke-h · Unicode: f22b · Created: v4.3 · Categories: Gender Icons

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

fa-mars-stroke-h
<i class="fa fa-mars-stroke-h"></i>

Looking for more? Check out the examples.