An adaptation of a tetrahedron shape to cubes allow you to construct wonderful shapes. It may also be used as desk toy and stacking toy.
Visit
tetragenius.github.io to design with tetrahedral shapes for free.
Geometric pendant or desk toy? You decide. Stack it, or wear it. You decide.
This tetrahedron tower combines symmetry in the normal XYZ axis and adds 4 additional symmetry axis ABCD at 45 degrees. Stacking with this shape immediately relaxes me and allows you to build amazing structures.