If you've been to any auto show with Jeep in attendance, you've probably seen that fancy waterfall thing they use to write the word "Jeep", "Toyota Sucks", and draw pictures. But how does it work?

Think of it as an ink-jet but with water that you can program patterns into. It's a bit less impressive than the Bellagio water fountain—this has 3000 valves as opposed to Las Vegas's twenty bajillion—but it's still pretty neat. We'd like one of these in our showers to get to the dirty spots we can't quite reach. You know, everywhere.

Detroit Auto Show: How Jeep's Waterfall Works [Winding Road via Jalopnik]