This thing is a multi-color simple tower that is designed to quickly test the filament changes in your MMU2 / MMU2S.
Included is the OpenSCAD file to generate the separate STL files so that you can generate a tower of arbitrary size and an arbitrary number of colors.
The provided gcode prints a 1 cm x 1 cm x 2 cm tower using filaments 1 and 2 switching every 3 layers with roughly 45 filament changes.
The author hasn't provided the model origin yet.