"We used to do a lot of merchandising but we moved away from that to become a Cancer Society centre, bringing in the support services.
The number of volunteers had also grown rapidly, she said.
"From very small beginnings, we've grown into this huge number of people who support it."
Mrs Bunny said the society helped support people come to terms with their cancer, as well as practical support such as providing transport to medical appointments.
"The Cancer Society supports them all throughout their cancer journey. Nobody chooses cancer, cancer chooses you."
The non-profit organisation was formed in 1929 when the New Zealand branch of the British Empire Cancer Campaign opened in Wellington with the "conquest of cancer" as its mission.
The plan was to have the headquarters in Wellington and establish regional divisions.
By 1963, there were six regional divisions and the name of the society was changed to Cancer Society of New Zealand and its objective became "to minimise the impact of cancer".