PCoquelin has already done some nice avatars with Timmain.
Here's one I tried to add a little color in. (I had very little time, next week-end I'll have a more powerfull tool to do the coloring)
the link is http://monsite.wanadoo.fr/ghyom/images/2-picture9.gif?0.9064822196931
just copy it in the "Link to off-site Avatar: Enter the URL of the location containing the Avatar image you wish to link to." section, at the bottom of your profile page
here's Newstar for Bonita's site
(it doesn't fit well for an avatar)