I dunno,
But here are my thoughts on this...
I was going to use a jacobs chuck and a cutoff bolt to "chuck" up the handle.
First drill a hole in a handle blank to a size just under your bolt size. Then place the Jacobs chuck in the headstock. Chuck the bolt (minus the head) in the Jacobs. Then thread your blank onto the bolt and bring your tailstock up the the other end.
Turn your handle like you want, sand and finish. Part it off on the tailstock end. Now you can drill the hole to the size you want your tenon to be.
Now you have a hole in the wand end that you can glue the wand shaft into...
Then you can just turn a tapered wand shaft of contrasting color with a tenon to fit the bolt hole. Sand, finish, part off and glue it into the handle...
Anyone can feel free to contradict or correct or suggest improvements/embellishments on these ideas, but that was how I was going to do it...
:cool2: