I would just make a gumpaste or fondant plaque. Then I would use clear tape and cover the back of the printed image and stick that on the plaque with buttercream or piping gel. The clear tape would serve as a barrier so the image won't get greasy or spotty from the BC or gel. Obviously you would tell your customer that this is not edible and to remove the whole plaque before serving the cake..
10/8/13 at 12:41pm