Within the past month or two, somebody posted a link to a website that has a million small signature graphical buttons. I can't seem to find it, I don't think I'm using the right search terms.
The web site creates small icons or buttons that indicate a person's likes. For example, if the person likes to play Doom, they have a short, wide button that says "Player of Doom", or something like that, with some nice Doom-related graphics on the button. They have similar buttons fore thousands of different things.
The dmoz open directory project has a lot of links to sites that provide free graphics and some have graphic creation tools. Below is the link to one of the sub-sections (there are also other web graphic sections):