When I was on vacation, I made sure to pick up some Del Sol goodies. These are polishes that change color in the sun. You can pretty much count on Del Sol polish being available in major touristy areas and Caribbean islands. They always have from what I remember a special of buy 3 get 1 free. These are $10 each, which is a bit pricey, but it's a fun novelty polish, so it's fine by me!
Sun Kissed indoors
Sun Kissed outdoors
I love this polish because of how dramatic the change is. I'm normally not a fan of the nude-pale peachy tones, but this one I find very complimentary. This one definitely comes alive in the sun. I love the intensity of the coral shade, and I of course love the gold shimmer!