Building things from recycled material raises the issue of how to make attachments without needing to consume new fasteners. Pinking ties are fasteners you make from the same recycled material you are assembling. I have a short video here https://youtu.be/MqNFtUp2DYk .
In the video I am using polypropylene sheet from plastic file folders, pinking shears with five teeth per inch, and a 0.2 inch diameter hole punch.
I hope to be presenting Make a Resourceful Sculpture with Pinking Tied at New York Maker Faire, October 1-2, 2016.