I've never done rainbow nails before, but a few days ago I couldn't decide on a single colour, so I decided to do what is known as "skittle nails". One hand cools, the other warms! Please excuse the wear and tear, this is three or four days after the original application.
I love it so much I think I might do this on my toes next time! How fun for summer! I opted for cream finish as I have the most polishes of this variety, and I didn't want to combine different finishes.
Here's the polishes I used if anyone is interested.
First picture (Cool tones, thumb to pinkie): Barry B Cyan Blue, Barry M Mint Green, Misa Green With Envy, Essence In the Jungle, China Glaze Grape Pop
Second picture (Warm tones, thumb to pinkie): Barry M Limited Edition Pink, Essence Glam Girl, China Glaze Japanese Koi, Essie Tart Deco, Essie Shorty Pants