A wire frame rhombic dodecahedron with 100 cubic cm "displacement" (enclosed volume). Each model in this set of polyhedra has the same enclosed volume. The struts have a 3 mm round cross section. The vertices are 3.6 mm spheres.
This model is large, about the size of a tennis ball. It makes a nice desk model or Christmas ornament. Try dipping it in soapy water.