Working within their teams, it's a fun and environmentally friendly challenge for the contestants as they head off to Reverse Garbage in Sydney's Marrickville to create masterpieces from the shops discarded treasures. Each piece, made of recycled materials, is auctioned for charity. The highest bid goes to The Weatherboard team's film negative chandelier winning them a highly valued working bee day. And The Sixties Suburban find themselves in another Stress Test elimination when their recycled wood coffee table is bought for the lowest price.