I started by collaging papers on the cover and adding leather to the spine. In the center of the book is a vintage mailbox door. I cut a hole in the cover and in the first several pages of the book in order to insert the door. The mailbox door and combination work or would work if I could remember the “safe place” where I put the combination. The larger gears are rusted chipboard. To see the tutorial on rusting objects click here. I haven’t done anything to the inside of the book. I think I’ll just use it for décor.