A flexographic press of conventional design is used to print on a container, with the container to be printed upon replacing the web and the impression roll of the conventional press. In one embodiment, the inflatable tree comprises an inflatable bladder having a substantially conical or cylindrical prism shape, wherein the axial direction of the bladder is oriented along a vertical axis, and a plurality of conical skirts attached to the bladder, wherein the plurality of conical skirts are attached at different points along the vertical axis. The asset identifier is a content-based or content-addressable asset name for the asset and is location independent. The information on type of change may be used to populate a database that includes geographic area description identifiers. The support structure includes at least one layer of expandable material disposed at the outer terminal edge of the body. The fuel cartridge is detachably connected with a fuel cell main body and assumes a construction in which the fuel cartridge is equipped with a fuel-storing vessel for storing a liquid fuel, a fuel discharge part, and a follower which seals the liquid fuel and moves as the liquid fuel is consumed at a rear end part of the liquid fuel.