Three new inventions in running for Best Design Award

What do a 'water bicycle', a 'Tongan drum' and a 'walking stick' have in common?

They're three new inventions showcased in tonight's Best Design Awards in Auckland.

One invention - a hydrofoiler - is the brainchild of Guy Howard-Willis, who also founded outdoor brand Torpedo7.

"I had a dream of whatever you can do on the road or the land with a bike, I wanted to simulate that on the water with foils," he says. "Always been fascinated with foiling."

He says aquatic biking is more than just playing with a toy.

"I think if this develops into a sport, and it becomes where people race on rivers and lakes and stuff like that, could it become an Olympic sport?" he adds. "I think it could be."

It's just one of the finalists at tonight's design institute awards.

There's something for most people there and that includes musicians.

Rachael Hall's 'Tongan drum' is called patō and is a portable instrument that can be tuned, a modern take on the Tongan lali drum.

"I'm half Tongan and there aren't really instruments from the South Pacific in the instrument market today, so I wanted to introduce the sound of the Pacific to modern music," she says.

Ms Hall is now planning on manufacturing patō to sell and wants to ensure her people also reap the rewards.

"In terms of the manufacturing process, if I were to get these drums made over there by people in Tonga, it could definitely benefit them."

Eujeen Hwang says her design will benefit dementia patients.

She has handmade a walking stick dubbed 'the present', made with a detachable ball for patients to play with.

"Dementia patients live in every moment and my goal was to make the every moment a bit more pleasurable," she says.

"A bit more exciting for both the caregivers, the families and the dementia patients themselves."

Newshub.