Just in time for the Christmas season: realistic, sophisticated light saber replicas that are robust enough to be used in duels. Yours for only $500-$700. Whatabargain! Site includes a teeth-achingly nerdy video demonstration of the product.
I'd take it a lot more seriously if they didn't make a really loud, plastic-y thump noise every time they hit each other, although I can't for the life of me think how it can be prevented.