Take the cereal box or other box,
I used candle box, :D
Find the middle of the box with ruler, mark with pencils,
Make the line on FRONT, LEFT and RIGHT ONLY of the box.
Just like this, :D
'lock' with glue or tape.
Like this, You almost done..
Make a cut to make your box looks good.
Close with pattern papper or do anything you like with this box, :D
You're DONE.. \(^^,)/