A few years ago we ran a Mailman logo contest, had quite a few very good submissions, and eventually chose a logo by The Dragon De Monsyne. Now with the advent of favicons I'd like to run another mini-contest. I admit shameful jealousy in seeing more and more cool favicons in my Mozilla tabs, and I want one for Mailman too.
Of course, I'm a musician not an artist, so I need your help.
I sort of think it ought to be a play on the circle in the cancellation mark logo. Maybe with the words "MAIL LIST" replaced with "Mailman" (bonus to get the "GNU" in there). But hey, feel free to ignore me as much as I ignore my lead singer when he suggests bass parts. :) I don't want to stiffle anyone's creativity!
One caveat: please assign copyright to the FSF if we accept your logo.
 Don't worry, you all will be forced to buy several copies of my new CD "The Mailman Never Delivers Twice" on my self-owned label Pumpichank Records, when it's released later this year. It'll include the sure-to-be-top-10 Mailman theme song, "Is That A Python In Your Pocket (Or Are You Just Glad To Hack Me)?".