The aim of this project is to design a modular plug-in system made up of flat, two-dimensional elements. These individual components should be designed in such a way that they can be assembled into a stable, three-dimensional structure without the need for additional connectors. The goal is to create a spatial configuration through repeatable interlocking that is both functional and aesthetically convincing.The components were designed in Rhino and subsequently laser-cut from MDF. In total, 20 to 50 elements were produced to create a flexible, three-dimensional structure. The development process was supported and documented through analog sketches, digital modeling, and systematic experimentation.