These images show my method of planning, in order to achieve the desired idea. As you can see, The first image shows us how I worked out the unusual 3D shape of the optical illusion. I worked out that to make this shape, I had to work around a square. From this square I figured out that if I were to make this shape I would have to start from the middle of each corner and come out at a 90 degree angle. From this 90 degree angle, I made a small margin either side of the 90 degree line because this will essentially urn the 2 dimensional drawing into a 3D net. To complete the net I added flaps so the shape can connect. The last image shows what the image would look like in real life.