This is a model I will be teaching in just two weeks at a workshop during the 2018 CDO origami convention in Italy. The star can be used as a tessellation molecule. After designing it, I learned that the molecule is structurally almost the same as Day and Night Tessellation by Haligami.
I designed this box as a modification of my Lucky Star Box, specifically with teaching in mind. Compared to the original version, this one uses a more convenient 8×8×8 grid rather than 12×12×12, and even if the whole grid is precreased, there are no unnecessary grid lines visible on the walls of the finished model.
This was also a test of Fedrigoni Splendorgel Avorio 100 gsm paper which I discovered at a local PaperConcept store: read the full review here.