Step 1: Tools
items not pictured (because I forgot):
A small phillips head screw driver. 2 post (not hanging or loopey) earrings with that you are willing to destroy. A small tube of super glue. A length of ribbon, about 3/4" wide and the length of the controller on the inside. And lastly some super tacky craft glue. Oh yeah, and a NES Controller.
Step 2: Opening the Controller
Step 3: Grinding
After you're done removing the posts, you need to cut out your credit card hole. Now if all you're going to be carrying in this wallet is cash, you can totally skip this, but it's good to have it just in case.
Step 4: Button Holder
SO, cut away excess circuit board with your rotary tool and cutting blade. I found it best to cut out chunks at a time, like the small piece at the bottom there, that was four little pieces rather then one long dangerous one.
Now, after making this piece, don't go on installing it, because with it in it makes it hard to get the hinge in place.
Step 5: Fabric Hinge
I used this red ribbon only because it was all I had and I wanted my wallet done today, the only requirement for the ribbon is that it is long enough to hold secure, it isn't so thin that the glue won't have anything to bind, and that it is wide enough to grip to a good amount on the top an bottom of the controller parts.
First off you'll only be gluing half of the controller at a time. You're going to want to put a small line of glue on one of the halves of the controller then firmly press the ribbon onto it and keep pressing until it holds itself to the controller. After the first half has dried put the controller pieces as you see below, the bottom piece is slightly thinner, so you might want to put some paper below it to make the tops even. You need to keep the halves how they are when gluing the second side so that your wallet will be able to open to this full 180 degrees.
Glue the same way for the second side as you did the first, but keep an eye out for rouge glue that tries to glue the plastic to plastic. Before the glue sets too much though make sure that the edges are lined up perfectly, so that the little ridges around the edge will fit into each other when closed. I also found that it helps to spread the glue with a toothpick and to put extra glue under the edges.
after you're done all your gluing and your hinge works well, you can put your buttons back into place with their brace. I cut off excess parts of the rubber with a razor blade so that they wouldn't be in the way, but that's just me.
Step 6: Closing
The earrings that I used had a long post that goes threw the ear, then a little flat part, then a little more post...something like this: --------|- if that makes any sense. I really have no clue how to explain how this works, but if you look at the pictures you should be able to figure it out.