Green Box for Pizza

The Green Box is a pizza box design that aims to minimize waste and storage space. An otherwise normal-looking pizza box transforms into serving plates for four AND a container for leftover pizza.

As can be seen below, the design can be implemented with little cost, only adding additional scores and perforations to the pizza box:

When folded, the box looks like a normal pizza container:

When opened, though, it can be broken apart.  The top cover can be used as four plates.  The bottom cover, with minor modifications, can be converted into a box that can store leftovers.

A video of the entire process can be seen below:

Source: Green Box