As some of you are no doubt already aware, I'm a programmer by trade. Almost half a lifetime ago, when I was still at my first real job that was neither part-time, nor temporary-by-law, I celebrated the release of a program I was involved in by making 3 of those microwave cakes that Pillsbury offered at the time (mix and plastic pan, all in the same box). I decorated one with the program's icon, and the other two with the program's initial screen.
Regarding the suggestion from "Crazy-Gray," I can only add that you should pay close attention to the copyright and license status of any image you download (Wikimedia Commons and Flickr are your friends!). I'm not quite sure what's meant here by "frozen transfer," but I'd consider edible printing as being especially appropriate for this particular application, since a computer is used to produce the decorative element itself. Look me up on Flickr (look for "Tracker-Backer"), and find my Leland Award cake: it was my first use of edible printing, and it combined a photograph of the trophy with the International Printing Museum's logo.