People Working Together
I designed this pattern for a T-shirt of the New England Complex Systems Institute. I took the NECSI logo, which represents five "people working together". Then I overlayed different sizes of it over patterns of a Penrose tiling, which is a tesselation with five-fold symmetry. In other words, it fills the space without repeating itself. Since the logo appears of different sizes, I see this pattern as "people working together at different scales".
You can find a high resolution PDF here.