Neville Longbottom Wand with some support needed on 2 of the parts. I printed it at .20mm with 15 % infill, but it probably doesn't need that much.
I took the original model here, decreased the amount of triangles, and split it into smaller parts to print on a smaller bed.
https://cults3d.com/en/3d-model/various/makeit-wand-collection-neville-longbottom-wand
I got the threads from the core of this model and merged it with the center piece.
https://www.thingiverse.com/thing:1866307
Currently, the threads aren't quite as strong as I expected, but super glue helps.
The author remixed this model.
I took the original model, decreased the amount of triangles, and split it into smaller parts to print on a smaller bed.