I've always wondered what those rear windshield wipers are for. Now I know: Jedi training.

And just in time for the "Solo: A Star Wars Story" trailer release -- this is the ultimate gift for the person driving a car in your life, who wishes that they were driving the Millennium Falcon. Now you can geek-out every time it rains.

The light saber upgrade for your costs a mere $20 bucks at Amazon, and can probably cut off Darth Vader's hand. The real question is can you afford not to buy it.