Vertigo

This is one of my very first and favorite designs. It's an action modular made by 12 units from silver rectangles. When you finish the assembly it looks like a cubeoctahedron but during the movement it will pass through a dodecahedron and will finish in a rhombic dodecahedron. In this video you can see how it works: https://www.youtube.com/watch?v=o923N7yYGK0
Here is a tutorial by Sara Adams: https://www.youtube.com/watch?v=NHQzdC36cUQ&t=3s