At my office we use Yahoo instant messenger for interoffice communication. Such messaging systems let one pick an "icon" to represent oneself. I wanted an icon of Katharine Hepburn, but I couldn't find one.
So I made some icons of old movie stars. Feel free to take and use them. Blogger makes them look sort of funky here, but they will work well for the purpose. Garbo didn't come out right, but I may put her up later. These should work for both AIM and Yahoo instant messenger.