Step 4: Close it Up, You're Done!
Ok, I lied in the last step. THIS is the trickiest part. Take the handle piece and place it on top of the eight skinny pieces. Try to get the flaps mostly lined up with the holes. This is where you're going to want to use tweezers. The goal is to get each of the flaps through the holes and folded down to fasten each skinny piece to the handle. The easiest way I've found to do this is one hole at a time. Once one hole is done, press down the flaps with your finger, and use the tweezers to line up the flaps with the next hole. Repeat this process until you've got all the flaps through.
We're basically out of the woods now. Congratulations! There will be cake and grief counseling at the conclusion of this Instructable.
Put double sided tape on the cardboard piece. You have to be more careful here, because you don't want to get it on the handle piece. What I did was have it hang waaaay off the edge, and cut off the excess. Be careful not to disturb the handle though: it's very irritable.
Now all you need to do is stick the front piece of paper onto the cardboard, making sure they're lined up nicely. You're done! You've been a very good test subject. Please proceed to the next test chamber.
Thanks for reading, hope you enjoy. If you have any ideas on how to make this better/more efficiently, please let me know. Oh, and if anyone is interested in seeing a version that opens the aperture, instead of closing it, let me know in the comments.