In preparation for their biannual sustainability festival this weekend, students at the Lutheran School have worked to create a series of 'recycled' artworks.

Eleven-year-old Billie Burns and his classmates used their artwork to highlight how sustainability affects all living things.

"We used buttons and made it into a rooster, because talking about [sustainability], we're talking about animals too," he said.

"It's important people know, never chuck something out if it can be used again. If it's recyclable, make sure it goes into the recycling."

When Jessica Bruce and Harry Richards' teacher asked their class to bring in any old keys for their artwork, the students were not expecting a bounty.

"I hadn't really ever thought about using keys like that. Now, I would like to find plastic bottles and turn them into something, like a rocket ship," nine-year-old Jessica said.

Providing inspiration for the student's further artistic endeavours sparks much pride in Jane Heller.

Member of the festival committee and a parent at the school, she said it has been encouraging to see her daughter bringing sustainable ideas home.

"[With recycling and reusing] the kids are often better than the parents, to be honest. They tend to really take it forward and are very proactive," Ms Heller said.

"The practices that you can get kids to commence when they're young will take them forward into their life beyond, so I think it really is important for young kids to have an understanding of what sustainability means and how it looks within their life."