I was asked to 3D print a wand and Luna Lovegood's Wand by Jason Foss was the chosen one.
I scaled it and add 2mm hole inside using Belnder.
I printed it on my Prusa i3 mk3s after splitting it into three parts.
The assembly is rather easy, just use CA glue and optionally 1.9mm shaft (can be a piece of filament) to reinforce it.
The wand is not perfectly symetric so be sure to align the parts properly (just rotate them until the fit is nice).