If it is successful, we may incorporate this feature into the Zippo.com Web site.Executed by Pittsburgh agency Blattner Brunner, the campaign is meant to broaden Zippo's reach in the collectibles and actual-user markets.In a way, the 68-year-old Zippo's dilemma is similar to the problem faced by brands such as Cadillac and Reader's Digest -- their user bases are aging faster than younger customers