It is known that the bottom of honeycombs are rhombic dodecahedra (part of).

The rhombic dodecahedron is one of the convex polyhedra that tessellates the space; see [Weisstein].

In the video below we construct this cell of the honeycomb (which is flat on the top part) from a rhombic dodecahedron, using the tools of “middle point”, “intersection”, and “copy seal” in NeoTrie VR.

This video was made in the congress #17CEAMTHALES (http://thales.cica.es/xviiceam/), with Ana García López and Manuel Martínez Díaz, after a communication about their project “ALLAN POE O EL SECRETO DE LAS ABEJAS”.

References:

Ibáñez R., El rombododecaedro estrellado: arte, abejas y puzzles, Cuaderno de Cultura Científica, 2014. Universidad del País Vasco. https://culturacientifica.com/2014/02/26/el-rombododecaedro-estrellado-arte-abejas-y-puzzles-primera-parte/

Cangas D., Crespo D., Grazyna M., Rodríguez J. L., Zarauz A., CONSTRUYENDO Y APRENDIENDO GEOMETRÍA 3D EN REALIDAD VIRTUAL, Actas de XVII Congreso de Enseñanza y Aprendizaje de las Matemáticas. Almería 2018 (en prensa).

Weisstein, Eric W. “Space-Filling Polyhedron.” From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/Space-FillingPolyhedron.html