Researchers at Washington State University have successfully 3D printed basic shapes with simulated moon rock.

Acoustic Rock These acoustic holograms work by cleverly manipulating the pressure exerted by high frequency ultrasonic waves via the inexpensive use of a conventionally 3D-printed plate.

Researchers have developed a technique that programs 2D materials to transform into complex 3D shapes.

Nets of 3D shapes The nets of 3D shapes help you see some of the properties of the shape. This net of a tetrahedron shows you the shape of each face and the number of faces.