‘Star Wars: How to Make Rey’s Last Jedi Lightsaber for $25 with sounds, clashes, and lights’…
Part One - https://www.youtube.com/watch?v=ua6coh9UXtk
Part Two - https://www.youtube.com/watch?v=qNQh3vJJhRI
and also this…
‘Star Wars: How to Make the Skywalker lightsaber blade - The Last Jedi for $5’ ($30 for the whole 'saber):-
https://www.youtube.com/watch?v=jfPhNqQhPHQ