Stoopid noob question - mounting a hollow steel ball to a wooden dowel

Hi Folks,

This will likely be the first of many dumb idiot questions from me

I'm working in visual fx for tv and film and there's some equipment that can't be bought pre-made, and one of these items is a mirror ball mounted on a stick like so:



The ball itself is a garden gazing ball which I have, and is made from hollow polished steel. Since I'm a diy noob however, what I need to do is finding a way that I can attach this to a stick so that I can hold it in front of the camera that's filming everything as reference. Ideally it'd be great to have this mountable on some kind of removable rod of some kind so I'm thinking if there's some way of either attaching some kind of screw hole on the bottom of the pole, and then put some threaded rod on top of a dowel, or alternatively attach an electrical or plumbing junction to the ball so I can slide a standard size bit of conduit piping in.

Tool wise I only have a standard power drill, what else would I need to do this on the cheap?

It'd be brilliant to have access to some kind of rentable workshop for this type of thing!

Thanks in advance,

John