My wife has been on me to turn some wands for a while now. She thinks with our sparkly resin they'd be a big hit... Are you all using a collet chuck to hold the spindle? If I use my current molds they'd start out round at least so that will save me some grief but I can't see how this would be good to turn between centers... Two pieces would be easier but I'm thinking the collet is the way to go.
I use my collet. For the handle end, I drill my blanks with a 5/16" bit about 1" deep. I made a 5/16" spur drive out of a steel rod that I mount in my collet. On the end of the steel rod I cut an X and then filed to points like a spur drive. I tap this end into the hole in the blank then turn between centers.
For the "magic" part, I turn them between centers, first turning the 5/16 tenon to fit the hole in the handle. Then get as fancy as I want as I turn the "magic" part. The tenon should be close, but does not have to be perfect tp glue it in the handle. To clean up the live center end, I stick the tenon in the collet chuck and sand it smooth starting with 80 grit.
The secret is to make these in batches of 12 or more, it is a time killer changing out tooling. I cut and drilll the handle blanks, then tirn all of the handles. Then cut and turn and sand the "magic" part and tenons, then sand all of the tip.
Sizes, about 3.5 to 4 inches for the handle, about 6 to 7 for the "magic" part. Sometimes I cheat and use dowels for the "magic" part, all they need is sanding and rounding the end. I made a 144 once, the dowels saved my sanity. My advice is be CREATIVE, make them all a little different, DO NOT try to make them all the same.