For my Spacial Dynamics project, I was asked to build a box for an object from nature and my object was a sponge. Sponges live by filtering water in see, taking it in and out. To show that motion, I built a box with an iris mechanism on top. When you turn the top section, the shapes will move and become a unified circle, closing the box completely. An additional feature is that one can move each layer in the box individually and play with it. That allows the box to transform into many shapes. It almost looks like it is expanding and contracting just like a sponge. I also put some prototypes i did before arriving the final result as it was a long project with many failed attempts.