This is a tool that can generate 16×16 icons (favicons) for your site. It also has a feature which allows you to create favicons from an image. Once you are done, you can download your icon in .ico format. If you do not know what is favicon it’s the small icon on the left side of the url. For example, here is the favicon for my site:
In order to display your icon on your website’s url, you need to upload it to your server and enter this code in your HTML. [change the url and icon name to your own]
<link rel="shortcut icon" href="http://www.yoursite.com/iconName.ico">
Thanks to Igor for letting me know about this favicon generator.
very handy
Also check this one: http://faviconstore.com. It is in English and Spanish :D
http://www.favicongenerator.com/ can be use too