I ♥ my cube!
So I made it into a box! Unfortunately I didn't specifically work off a pattern/template - I kind of DIY-ed it.
I constructed a cardboard box - making the widths of the four sides a millimeter smaller than the template. This is so that the lid would fit on top with ease.
... Honestly, I don't really remember how I did it - it really was a spur-of-the-moment kind of thing that I made up on the fly!
This is what it looks like with the lid on: [link]