Schools are softening the financial burden of annual balls by running dress sales where students buy cut-price second-hand dresses and sell last year's garb.
The costs associated with senior balls have spiralled since they moved away from being a humble dance at the local hall. A single ticket costs more than $100 and many girls want professional make-up, spray tans and help from hair stylists.
"It can be really hard for parents, there's a lot of peer pressure to compete and spend a lot of money," said Karen Howes, who has a daughter in Year 12 at Rangitoto College on Auckland's North Shore.
Her daughter, Alice, 16, was hoping to find a floor-length, blue number at the sale. She said it was a great alternative to buying online, where a buyer cannot always try the dress on before handing over the money.
Year 13 students were looking forward to offsetting costs by making some money on gowns from the year before.