Ball in cube (or Rolling Cube) (Q66378)

This is the exact opposite of my "Cube in Sphere" design (Thing #14878), with a twist. Instead of printing the ball, I designed the open-sided cube to fit around an existing ball that I have had lying around for awhile. I also just noticed that this design is very similar to Things # 8846 ("3D Sphere in Cube") and #5181 ("Block with Ball")... not to sound anything like Dr. Seuss, of course. :) It took me 5 prints to accomplish this, mostly because I'm a single father and had 2 children running around the house while printing the first 4. I've gotten used to not monitoring my prints, and failed to check on the first 4 prints before it was too late to "drop the ball". Have you ever seen a cube roll before? My print does just that... and my 7-year-old boy is fascinated by it. Try it!