The 15-year-old Dunedin designer came third-equal in the national Shakespeare Globe Centre New Zealand Dawn Sanders Shakespeare costume design competition.
Izaac said he had always had an interest in fashion, but first started textile work at the start of the year at school.
He decided to enter the competition with a costume based on Ariel, a spirit who appears in The Tempest.
He knew that was the kind of design he wanted to make, but it needed a spin that was personal to him.
He decided on a blue design with strips of fabric hanging down the back to resemble a whale, which alluded to Otago and its whaling history.
As a young man with Maori whakapapa, it was the perfect design to appeal to his love of history and his interest in culture, he said.
He was already working on his entree for another competition, which was also based on the region’s history, he said.
The winning designs were created by professional costumiers and shown off at the award show in Wellington earlier this month.
Izaac sold wheat bags to raise funds for the trip.