Apparently, rich people love showering in water colored by light. That's the only explanation I can come up with for the existence of so many gimmicky showers with built-in light shows. The latest is the iB Rubinetterie.
This fancy shower head lets you choose how much water you want coming out at once, from a gentle spray to a heavy downpour. And, of course, you can control the wide range of colors to make the shower more… well, I don't know, really. Luxurious? Let's just go with colorful.