Hundreds of people in Dunedin workplaces and schools donned wigs for the Child Cancer Foundation's first Wig Wednesday fundraiser.
Foundation Otago Southland business development manager Elaine Horn said a particularly large number of families in Dunedin were dealing with child cancer at the moment.
"The idea of wearing a wig is about spreading a bit of fun and raising money for child cancer sufferers and their families.''
Staff at the Dunedin South Medical Centre were among several businesses which radically transformed their hairdos for the day.
Centre nurse Corinna Waterhouse said the practice was always happy to take part in events advocating good health and health awareness.
"It is also a good laugh,'' she said.
One of the practice's youngest patients, 3-month-old Grace-Jane Iakopo, showed her approval of the brightly coloured wigs by flashing her blue-haired nurse a gummy smile.
Despite this, Ms Waterhouse said she did not intend to have blue hair today.
"I think I'll go grey again.''
The Child Cancer Foundation hopes the event will continue next year on a larger scale.