Packaging Egg Box - No, it isn't software exactly. But it is a great example of a design that works well at revealing the beauty and nature of the content to the user rather than hiding it, which is what UX design ought to do more.
Imagine this commercial package converted into a favor box. Makes you want to think inside the box. Constructing this one will however be a challenge, even for Ed Poultry. easily open just like flowers