Snap-together Roman Dodecahedron

The Roman Dodecahedron is a curious puzzle, a strange object of which over 100 have been found, yet which have no contemporary mention to indicate what their function might have been. Many explanations for what they might have been have been proposed, but their purpose is still unknown.

3D printed models of these exist, but the shape isn't one that can be easily printed by a hobby filament deposition printer without a lot of awkward support material. This model is for parts which can be easi