Fontello - icon font scissors
Fontello is a tool to quickly pack vector images into webfonts. Consider it like Twitter Bootstrap, but for images. It builds everything necessary to include graphics into your web pages. Also, fontello has a big built-in collection of open source artworks.
Ulimited colors and sizes
400+ predefined icons, with unlimited colors and sizes, you can added other icons to your site. You can customize every, like icon color, icon size, text color, text hover color.