Attendees play with the fake cocaine on a tray. Photo / Supplied
The cocaine, which was actually icing sugar, was displayed on mirrors with shavers to scrape the powder into lines.
An anonymous source said there were numerous photos on social media of parents pretending to snort cocaine, including photos posted by teachers of the school.
"This school has parents who are ministers of the current government, are health professionals, teachers, lawyers, police and so on," the source said.
Fox said the school had held a fundraising ball every year for the last seven years. It had never received a complaint regarding inappropriate props before and the event normally raised upwards of $20,000.
"It's a themed ball, parents only, R18.
"This year it was 'Vegas baby'."
The school had received two complaints after the event. Fox said both parents had been apologised to.
The event also featured Marilyn Monroe jumping out of a fake cake to MC the ball.