Some of the entries are simply documenting materials that are in need of recycling, such as tires, container ship cargo bags (huge nylon bags with a capacity of more than a ton that are used to load materials on board cargo ships rather than using the ubiquitous shipping container), and discarded wind turbine blades (which are unusable for their primary purpose due to cracks)
Sometimes, recycling ideas are documented, as with the "Trashforma 04" project which took 166 stainless steel sinks and created a cubic volume 3.5 meters (11.5 feet) on a side for a beachside installation. This installation is as much about art as it is about a practical form of shelter, but it engages with the idea of transforamtive use.
Superuse encourages designers who are looking for creative applications where existing materials, that would otherwise add to the waste stream, become the raw materials for other products that extend their usefulness.