In a burst of post-Tom Moon inspiration I drew this:
I put dialogue on it, but probably punchier without it (tho' who here has the strength to pass up a good butt joke?). The character bubbles were just what I had handy--we can distribute these amongst our contributors however we want.
UPDATED: Incorporating some of the ideas posted. Cheesy 70's font all my own doing. Haven't heard back from Scott if he (and Cork) are in. Obviously the "Tuesday Art Group" upper corner could use work--same with the fonts and finer points on the layout.