I think I know how to make one using URI and some XML.
I need to test it out though.
For those that don't know what a favicon is it's a little colorful picture that appears on the side of the URL address bar.
More info here.
hahah. I just realize that they already have one.
You need to use Konqueror to view it. It could a compatibility issue. I'll try to find a fix it a get the time.
Anyways, Sabayon 3.25 is out!! I'm making this post from it right now.