cbox.ws. You need to sign up for the service first if you haven't signed up yet..
1. Login to http://www.cbox.ws
2. Go to option and chosee smile.
3. Insert the URL of your chosen image under Smiley image URL.
* Let's say for happy-faced emoticon you can use :) in Code
* or for sad-faced emoticon you can use :(
6. Leave blank for (optional)
7. Then, click New Row
8. Keep on adding emoticons if you want.The Smiles for cbox is unlimited :).
9. When you're finished, click Save changes.