One fan of The Legend of Zelda creates a cube diorama showcasing what a scene from Ocarina of Time would look like with a classic 2D Zelda design.

A new kind of 3D display could take the form of an acrylic cube with an image inside, which can be erased and rewritten to easily. The new technique can be used to make 2D, 3D and even animated ...

Cubes, cuboids, tetrahedron and prisms are examples of polyhedra. When you open out a polyhedron as a net, it shows all the polygons that it is made from. For example here is the net of a cuboid.