Now, these pieces go together as follows: if you don't have this cardboard, I suggest making two of this piece. note also that the piece in the first picture is one that I cut out of really thick cardboard, probably at least twice as thick as the stuff delivery boxes are made of. note that if you are not making this out of cardboard, you may have to adjust the thickness of your pieces to make it look right. So, to start with, you will need one of each of the above pieces.