Wood pallet sandbox, with bench seats that unfold to cover the sandbox! LOVE THIS! I hate sandboxes bc it's like an outdoor litter box for wild critters. Love that the cover will keep them out! Hubby is going to hate that I found another pallet project :D
These set of DIY structural packaging is a great use of sequential design where the use of technique and style, forma, material and colour is all in the same forma and the step of creating is almost the same.
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.