Content > Link Lists > "Header Button"

Supports a single link.

Content > Link Lists > "Social Links"

The custom icons can be created by entering a custom class in the icon class field.  A full list of available icons can be found at http://seacoastgrace.monkpreview3.com/_assets/fonts/icons/ (use http://seacoastgrace.org/_assets/fonts/icons/_assets/fonts/icons/ when your site goes live).