I saw these balloon nails on tumblr and had to give it a shot. I went about doing it a little differently, but I was very happy with the outcome. These are definitely nice and cheery.
The colors I used for the balloons are OPI My Chihuahua Bites, OPI Who The Shrek Are You?, OPI Ogre the Top Blue, and China Glaze Spontaneous. The base color is Sally Hansen Whirlwind White, and the balloon strings are Essence Movie Star.