Abstract: A method of applying a self-adhesive sticker to a vehicle, which vehicle has a predetermined shaped window opening and a window therein. The method of the present invention includes the steps of first providing a self-adhesive sticker applicator. The applicator has a template portion having an outside shape which closely follows the predetermined shape of the window opening and provides for fitted positioning in the window opening. The template portion has a central opening large enough to allow a sticker to pass therethrough. An applicator portion is attached to the template portion and includes a pressure applying portion which overlies the central opening. The applicator portion includes a sticker attachment portion wherein a sticker or decal or the like may be attached to this portion with an adhesive side facing the central opening.