As I said in my beach bag post, I was in San Diego last week, of coarse I picked a beachy nail polish to bring along with me so I could do my nails.
I decided to bring Superhero by: Del Sol
If you aren't familiar with these polishes, they change colors in the sunlight. Superhero changes from this Cinderella blue to a lavander color. It is so cool to watch.
You can't see it that well but in the picture below this is the purple that it changes to.