If you were in middle school in the ’90s like I was, you were probably obsessed with mood rings. When it turned green, you told all your friends it meant you were happy (or envious? I can’t remember). Of course, the “magic” was in the temperature of the ring, which is how LeChat’s mood nail polish changes, as well. But it doesn’t make it any less fun. The brand’s new Dare to Wear Mood Café collection features gels and lacquers that change color with your body temperature. And that’s not all. They also have a long-lasting coffee-inspired scent.