The pair are expecting their second child and told Flava they buried their first child's placenta in Rarotonga as well.
"We know how important it is in our culture to have that grounding in the roots of where you come from," Flava host Moses Mackay said.
"We read [the submission] and it was really touching for us."
Burying the placenta is commonly an indigenous practice for people of Moana-nui-a-Kiwa (Pacific) including Māori.
The Māori kupu (word) for placenta is whenua, which is also the same kupu for land.
It reinforces the relationship between a newborn child and the land of their birth, or their home in which they can always be connected to.
For many, the placenta is buried in ancestral lands, where a person descends from. It has a deep cultural significance for those who practise it, like Mati.
The pair have won an all-expenses-paid trip sponsored by Air New Zealand's Grabaseat and The Rarotongan Beach Resort & Lagoonarium.
Flava staff paid a visit to the Faaeteete household to present the win themselves.
• Watch the full video here.
