Every once in a while, it dosen't hurt to update a bit!
Me and my beloved wife ~Zoluna (https://www.deviantart.com/zoluna) are planning to built ourselves our next home. To do so, we are planning to built it out of recycled materials as much as possible.
First, because it is a good idea to do so, eco-wise at the very least.
Second, we just love to work with second-life material and bring around a new use... extract a new life. Like sculptor say the form is already in the matter, they just "clean" it. We believe that these material just ask to be reuse, there new use is already there, we just have to figure it out.
Third, well, its more time consuming but its cheaper...