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You can build this retractable glowing lightsaber using an old-school magic trick.
Disney’s “real” lightsaber wowed us with a glowing blade that extended and retracted, but since it refuses to sell it to Star Wars fans, the YouTube channel HeroTech made its own using LED strips, motors, and a magician’s cane. The effect is convincing, and if you’ve got the engineering skills you can even buy the plans to build your own.
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