A novelty advertising system using a plurality of hollow plastic rectangular enclosures simulating stacking boxes of real products to construct an advertising display is herein disclosed. A carrier synchronization module receives one or more signals representing a frame that includes one or more overhead fields. 05 to 10 parts by mass of a phosphorus stabilizer with respect to 100 parts by mass of the rubber component. Additional grooves are contained on the shaft-side face of each sealing ring segment. A transform is applied to the residual signal. The plow mounting assembly includes a frame assembly semi-permanently connected to a front end of an associated vehicle.