Classic paper box, made from recycled paper.
The top and the bottom are made with the same size square.
You can make them more cubic, or flatter and larger.
The brown paper I used is the one that sit on the bottom of the bananas boxes in the supermarket. It is really nice to make boxes, it have a beautiful avana color, and is just the perfect thickness. I gather it from the big recycling bins in the back of the grocery shops.
They are easy and fun to make, not really a classic origami as I used pencil and scissors...
Step 1: WHAT YOU NEED
-thick paper squares (of two different color look nice);
Step 2: DRAW
Trace the two diagonal of the square.
You can also just fold the paper, but I prefer to mark it with the pencil, so there is not a big fold X on the top of the box ones you are done.
I'm using regular paper on the tutorial, as the folds come out more visible with it, but thick paper, or thin cardboard give the best results.
Step 3: FOLD
Fold the edges trough the middle.
Step 4: FOLD
Refold ones more the sides trough the exact middle (see photos).
Step 5: CUT
Cut as in the photos.
Step 6: FOLD
Open up the side cut, and fold the other as in the photo.
Step 7: FOLD
Flip the edges in, and you have the bottom part of the box.
Step 8: TOP
To make the top, follow all the step of the bottom, except you are going to fold the edges not exactly to the middle diagonal, but few millimeters before (see photos).
Step 9: DIFFERENT SIZES
To make different sizes boxes, just fold the sides further from the middle.
Remember to make the top always few millimeter wider (fold further from the middle).