To care for and maintain collectible art ornaments, handle them gently, avoid exposure to harsh chemicals or extreme temperatures, and store them in a protective case when not on display. Consider using an ornament storage system with separate compartments for each ornament and wrap your art ornaments in protective tissue. If dusting is required, use a soft cloth to protect their delicate condition. For polishing sterling silver ornaments, use a quality silver polish specifically designed for tarnish removal on silver items. Avoid excessive polishing to prevent damage, and store silver ornaments in tarnish-resistant bags to minimize tarnishing.