Check these projects made from recycled materials.
Great Examples of Recycled Building Material in Architecture, Blog
Sustainability
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How to Make a House Out of Recycled Plastic Bottles : 7 Steps (with Pictures) - Instructables
Cardboard House #11 Building Villa from Recycled Materials
5 Brilliant Sheds Made from Recycled Materials
Recycled Materials, Tag
Piling Up: How China's Ban on Importing Waste Has Stalled Global Recycling - Yale E360
6 Architectural Projects Made Out of Recycled Materials