Have you thought of using the smaller cake decorating cutters to cut out stamps from adhesive foam? You would need a specialist cake decorating supplier, then the foam should be available at art/craft shops. Once you have cut out the foam (instead of rolled out icing sugar) then you could stick the little flowers, leaves etc on the end of wooden dowelling? You would then have small stamps to print with. I don't know if this would make sense from the USA point of view