The most effective method of breeding a snow dragon is Cold (lv 10 left) and Blazing (lv 10 right). It has about a 41% success rate. The egg is light blue with light blue swirls. It takes 8 hours to breed, and 8 more hours to hatch.
Other methods include:
You may also buy the snow dragon from the market for 1,000 gems.
Snow+Fog Snow+Storm
You can't breed these, you need to buy them with your coins.
You have to buy it. It is one of the main base dragon.
You don't breed a Kairos Dragon in DragonVale. You have to get parts to complete it.
I'm pretty sure you breed an air with a cold, but I'm not positive
you breed a ice dragon with a mine dragon
You have to breed a plant and a fire dragon.
As of July 2012, there has not been a star dragon in DragonVale.
You have to breed a metal and a water dragon together.
You have to breed a sun and moon dragon together
You have to breed a plasma dragon with a salamander dragon.
Breed the earth dragon with the fire dragon.