Kāne's work on a much smaller scale reveals his artistic versatility. Kāne designed seven postage stamps for the U.S. Postal Service including stamps commemorating each of the 25th and the 50th anniversaries of Hawaiian statehood. His 1984 stamp for the 25th anniversary of Hawaiian statehood depicts a double-hulled voyaging canoe, a Pacific golden plover (a migratory bird which winters in Hawaiʻi), and a volcano erupting on the flank of Mauna Loa, on the Big Island of Hawaiʻi. On the day of its release, sales of this stamp set a new record for the U.S. Postal Service. His 2009 stamp for the State's 50th anniversary depicts a person surfing and people paddling a traditional outrigger canoe, all riding the same wave. This stamp engendered some controversy, as Kāne was highly critical of the typography in the final design, which he felt mistakenly substituted an apostrophe for the symbol that signals a glottal stop in the word Hawaiʻi and is known by the term ‘okina. He also designed postage stamps for several Pacific island nations, including French Polynesia, the Federated States of Micronesia, as well as the Republic of the Marshall Islands.