Abstract: A ball mold is composed of two half bodies and two hemispherical cavities respectively defined in the two half bodies to correspondingly match with each other to perform a ball-shaped interior inside the ball mold. Each of the two half bodies has an inner surface, at least one smooth area and at least one rough area; both areas are defined in the inner surface. Preferably, the smooth area has a gouged depth deeper than that of the rough area. Therefore, a ball molded by the ball mold has rough elevated portions corresponding to the rough areas on the ball mold and smooth recesses corresponding to the smooth areas on the ball mold. The ball only needs to be attached with pieces of artificial leather inside smooth recesses to be flush with the rough elevated portions. Thereby, the ball with two different surfaces is achieved in a convenient way without thermal pressing.

Abstract: A method for making an image on a base layer includes preparing a substrate, placing an exterior layer on top of the substrate, preparing a cutting mold, cutting the exterior layer with a predetermined shape, and hot pressing the exterior layer on the substrate by the cutting mold. The cutting mold has a body, a cutting edge formed with the body and extending out from the body for cutting a portion of an exterior layer on top of the base layer, a pressing surface formed adjacent to the cutting edge for pressing an outer contour of a remaining portion of the exterior layer onto the base layer, and a space defined immediately adjacent to the pressing surface and having a shape the same as that of the image.