Required software development,Website Development freelancer for Need a design for "Golf-Rope connection" job

I have a product that is made out of sheet metal and helps a golfer improves their swing. I have a real golf ball to a rope-like string that spins around a metal construction.

One thing that is not done is figuring out how to attach a real golf ball to either a very stiff rope or a cable (maybe some wire). The connection must be really strong and must terminate inside (nothing should protrude from the bottom of the golf ball).

Please, include in your proposal - how you would approach this problem in a short paragraph.
I will read each proposal and consider all the applicants.

Thanks

I am not necessarily looking for CAD models, but rather a solution(s) / idea(s) to solve this problem

Skills & Expertise Required

software development Website Development