Here is my yellow square paper.
Flip it over.
Fold in half from right to left. Then open it.
Fold in half from bottom to top.
Fold that in half from right to left.
Now open the top left corner of the square.
And press down to get a triangle. Flip it over and repeat on the other side.
This is what you should get.
Fold up about an inch.
Unfold so that it makes a crease.
Fold the right corner as seen in the picture.
Unfold and repeat on the other side.
Fold the two corners so that the edge of the paper is at the crease.
Open this part up.
And press down.
Repeat on the other side.
Now fold the flap backwards.
On both sides.
Now pocket fold the top part down.
Flip over and fold to crease the two vertical creases you see here.
Fold the two corners down to the crease to make the ears.
Draw on two eyes and a nose.
Open the top part and press down.
To make a box! And you're done!
I filled my box with origami stars, you can fill them with candies or anything you want! :)