Post your entries here, and whichever one I judge to be the best will become the new header image. Note: It would be good to make your image 3 or 4 times wider than it is high, since it's a header. A handy size at 125 dpi would be 6 inches wide by 1-and-a-half to 2 inches high.
I drew this quick doodle of a ham rock band in a few seconds, just to have something up for now. The drummer is supposed to be a ham, sliced in two, like the singer, but his face is on his side instead of the meaty part. The bassist was supposed to be a ham that's not sliced, but he looks more like a melon or something. Let's just say he IS a melon, shall we?
It just occurred to me that the drummer should be counting off, not the singer, right? Oh well. That's why YOU need to post something better. The rock band is a good angle, I think, because it's a "Jam," but maybe there are some other fun ways to go with it, too.