Iron Man Salute!
Craig I. sent in this one -- and as he writes in his email:
"Here's an old shellhead doodle in pencil I did a long time ago. I'm not sure what's going on with his right hand, but it looks kind of like he's reciting the pledge of allegiance ... anyway, that's why I call this one 'Iron Man Salute!'"
Thanks, Craig! All hail the Iron Man!