In 2003 when Nanfang-ao celebrated its Mackerel Day, Chang exhibited his shells for the first time ever at the invitation of the local fishermen's association. The great number of shells not only surprised the attendees but also attracted the attention of the county government.
2003 年，南方澳慶祝鯖魚節，在漁會的邀請下，張議顯首次推出貝殼展，琳瑯滿目的貝殼不僅讓民眾驚豔，也吸引縣府人員的注意。