Chicken cage made out of PVC pipes : r/BackYardChickens
Chickshaw made from PVC pipe, chicken wire, and 1x2s. (This is before the wheels were installed.) Move it to a new spot everyday. My chickens LOVE it. : r/homestead
Free plans - Pastured poultry chicken coop / pen.
Margie Willits - Customer Reviews of Our Geodesic Chicken Coop Kit - Zip Tie Domes