Ball caged in icosahedron

The cage has four-sided beams making up an icosahedron. The ball is built inside.

Separate ball & icosahedron 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 icosahedron, pausing the job as it gets taller than the ball and insert it before finishing the icosahedron job.