I have been working with Loading Dock, an area, low-end, re-purposing company. They gave me access to a bunch of different materials that they often have trouble selling, to try and figure out neat new ways to inspire others to use them.
This was my initial exploration into hollow doors. I have found that you can use them to create great organizers. I am scheduled to give a workshop with them later in the year to teach others how to do this. More pics to come soon!