Research and Context

To this end, I designed a simple ball, with a string running through it.

If the string were secured through the ball end to end, through the diameter, it would leave an unpleasing bump of tied string at the end, and the ball would be able to slip along it.

If the string were secured via being balled-up on the inside, there is a chance it could compress or squeeze out.

Creating a simple, internal loop through one end of the ball seemed like the only feasible way to make the ball connected strongly to the string, while still being easily replaceable, and not interrupting the smoothness of the outside.