Please choose an icon or make and upload your own avatar. Try making one here:
Here is one I made earlier.
Alternatively, if you are a Simpsons' fan try this site:
Message to 7K1: You can save your Simpsons' avatar as a jpg. Click on the download arrow and then choose "save as jpg" which is right at the top of the box that appears.
Some girls might enjoy this site: blessthischick
Finally, you might like to WIMP YOURSELF!