Thanks to MAKERLABARAUTOMATION for sharing this awesome version of the Bellatrix wand. This is what I was looking for:
This Bellatrix wand is pretty lame. Anyone out there think they could do better? If so, give it a shot and let me know. I included the second picture to show what it should look like. I need this for Halloween.
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/hEQjBxxH74f