I remixed the excellent https://www.printables.com/de/model/501470-pool-noodle-lightsaber-handle from https://www.printables.com/de/@Cosmeeto to make a double light saber handle.
The original instructions apply.
I normally print it with a 0.4 nozzle at 20% cubic subdivision infill and with 5 walls.
It prints without raft or brim on my Ender 3 V2 Neo, but takes about 10 hours.
The author remixed this model.
Added a second thread to make it into a double lightsaber handle.