These have served me well over the years;
My eye - may not work well for you. I use it on other boards, too, and for my Gravatar. But a personal photo may be good, even though not of your (whole) face.
Zombie Hanners (I dunno - it was good for a while)
Then there was the Bogart phase - I used this one for
years... I liked the conversational feel it had.
And now I've got the one you see, which looks more like me than I realized when I first chose it. It was chosen for attitude more than anything.
Did you used to use the big cookie with glasses that you showed in your first post? I remember someone on here using that, just never tied it to a name. If that's the case, I'd go with it again, it was distinctive and personifying without being literal.