Remember the rings that changed colour according to your mood? Everybody had one and it was funny to see them changing during the day … Now that same effect can be recreated on your nails. “In the mood” is a new nailpolish line that takes the shade-shifting technology to create colours that change based on your mood, your body temperature or the heat of your cappuccino! These “unstable” polish will continue changing as long as you wear them. Available on their site from 8 dollars.