CKEditor & TinyMCE Font Awesome is simple but powerful plugin which will let you to insert Font Awesome icons into your document.
Choose one of 400+ icons and configure their color and size.
If you do not have Font Awesome installed on your server (and do not want to do it), the plugin supports inserting a bitmap version of any symbols (with any color and size). This feature requires PHP & GD image library.
CKEditor & TinyMCE Icons can be fully configured: set any default font and color, all checkboxes' default state. Also you can hide bitmap conversion feature at all if you do not require it.