Ball caged in dodecahedron

The cage has parallelogram cross-section beams making up a dodecahedron. The ball is built inside.

Separate ball & dodecahedron files allow you to make it in two colors if your printer supports it. However, it may be possible to make the ball first, then make the dodecahedron, pausing the job as it gets taller than the ball and insert it before finishing the dodecahedron job.