Well, it can be created in any program, really. Just some sort of a logo, a small graphic of some sort, which the winners can use on their personal sites by the picture, if they'd like to. I guess it would be best if it was small both in physical size, as well as file size. GIF or jpeg, obviously, and non-animated. I'll type up a new announcement for it soon and put a link to it in the announcements box at the top, and we'll all then use that thread for submissions.