School-aged students are being invited to create a sculpture, installation work, image collage, functional furniture, or wearable project using used and recycled materials.
The 'Reuse, Rethink, Repurpose' competition will coincide with Council's popular Trash to Treasure event on Saturday 10 August, at the Buy Back Shop in Portsmith.
Mayor Amy Eden is encouraging all schools and early learning centres to get involved and showcase their creativity and conservation.
"The competition is a fantastic addition to the Trash to Treasure event, which gets the next generation thinking about reusing and repurposing waste that would otherwise go to landfill," Cr Eden said.
"It's all about encouraging and empowering the community, particularly our younger generation to reuse, rethink, repurpose waste and make a positive difference."
Last year, Trash to Treasure attracted over 1500 people, over 20 stalls, and included live entertainment, workshops and competitions.
"Trash to Treasure promises to inspire and educate residents on the importance of waste reduction and recycling," Cr Eden said.
Entries for the Reuse, Rethink, Repurpose competition open from 1 May and close midday on Friday 17 June.