Abstract: By providing a bottle with a plurality of sets of ribs formed about the outer surface thereof and providing a cooperating telescopically engageable decorative portion with a plurality of sets of fins extending from the inside surface thereof, a unique securement system is achieved for frictionally interengaging and securely mounting the decorative portion to the bottle portion, thereby attaining a unique desirable aesthetic effect. Preferably, each set of ribs on the bottle are arranged substantially vertically along each side edge thereof, with the plurality of sets of fins of the decorative portion being positioned for mating, overriding engagement therewith. In addition, each of said elongated fins of the decorative portion preferably extend the entire length of the zone created by the plurality of ribs in order to assure overriding, interlocking secure engagement between said ribs and said fins.