Otumoetai College students are crossing their fingers that they have created a world record for the most people to simultaneously eat a marshmallow.
About 1000 Year 9, 12 and 13 students made the record-setting attempt at school yesterday and are now tallying up the numbers to send to Guinness World Records.
Headboy Hayden Christie said he would not know if the record was official until they heard back from Guinness World Records which could take a few months.
"But I think we have supplied all of the aspects necessary."
And he had high hopes they would have secured the world record.
"It is a rewarding feeling to see the smiles on everyone's faces."
The school also attempted to break the world record for the most people in a circle brushing their teeth. The current record stood at 401 people and was held by Lower Hutt school Chilton St James.
"I do not think we got 400, but the main one was the marshmallows," Hayden said.
Brookfield New World supplied the marshmallows for the record attempt.
"We had about 2400 marshmallows, about $88 worth."
The school's creative arts committee came up with the idea of the marshmallow record attempt.
Hayden said it took a while to organise and there were a few ideas for record attempts along the way, including the most people doing a dance.
"But that would mean we had to learn the moves and how to do the dance," he laughed.
Hayden had to gain approval from his teachers to let the students out of class to attempt the record.
He sourced officials to verify the success of the record-setting - two scrutineers and 20 adult stewards were also on hand.
"Thanks to our teachers who let us do this. Not many teachers let us have a period off to break some world records."
They had to send a formal application through Guinness Book of Records and would now need to send video records of yesterday's attempt and tallies of all involved.
Acting principal Pip Woodward said the school's leadership team had created a legacy.
"It is starting something we have never done before," she said.
"We wanted to step back and let them lead, and they did so well. Dave [Randell] would have been so proud of them as our Year 13 leaders.
"They raised the bar when it comes to creating opportunities for school spirit."