When I was a kid my parents had one of these curiosities made out of wood. It was always fun to see people look at it and wonder how the ball got inside.
I just couldn't resist designing my own version and here it is.
After printing, place it on a shelf and see if visitors wonder how you were able to get the ball inside.
Print settings
Layer height: 0.2
Infill: 15%
Supports: No
Removing the provided support requires the following steps:
The author marked this model as their own original creation.