In an intensive prototyping phase, we created various versions of Tangible User Interfaces (TUI) using a 3D printer in our workshops. The printed objects are user interfaces for the communication with the touch table. Physical objects have a special appeal in the use and control of digital content and create an access to complex topics. By moving the printed cube across the table, you can view various information about Sunfire products and how they work. The cube has the shape of a PowerCore – Sunfire’s key technology. We also designed other objects such as houses, vehicles or a wind turbine to showcase the use and production of renewable energies. Arduino controlled motors and LED strips ensure a lively ensemble on the table.