"The crowd certainly turned out and they all had a laugh at our expense."
Hastings district councillor Sandra Hazlehurst poured the buckets, with help from Hawke's Bay Magpies players.
"She enjoyed it a bit too much for my liking," Mr O'Keefe said.
The Ice Water Challenge is a viral Facebook campaign aimed at raising money for cancer charities.
When a person is tagged in the campaign on Facebook, they must do the Ice Water Challenge and donate $10 to a cancer charity, or, if they chose not to do the challenge, donate $100.
Mr O'Keefe arranged his version of the challenge after his children tagged him. The shock was intended to simulate the sensations felt by those undergoing chemotherapy treatment.
"You're not really prepared for it. It cuts your breath off and gives you an insight into what our young ones go through."
The proceeds would be donated to Cranford Hospice.