1-print Trapped Ball

I designed this in Tinkercad. It's a one-print hollow cube with a ball inside that can roll freely inside the cube. The ball is larger than the holes in the cube making this impossible to make any other way while keeping the cube in one piece. The included file has several different variants that can all usually be printed on a desktop printer with supports and a raft.

Note: I printed with the file titled "Original Cube Sphere" but I recommend using the one titled "20k Cube Sphere." Update: