The Hacksmith, whose youtube channel you should definitely be subscribed to, made a real lightsaber, or as real as it gets in real life. It can get up to 2,500 degrees which will burn through all kinds of materials. Will it whip through it like the movies? Nope. Does it look awesome and actually cut through stuff? Yep. Is that good enough for me? Absolutely. Check out the video to see how it was made.