Finally, an easy and inexpensive way to make your e-cig a fashion accessory! Vapor Jackets are stylish e-cig skins made of durable plastic films designed specifically to protect and personalize electronic cigarettes of different sizes.
Vapor Jacket is very easy to apply. You need to trim it to the correct length, slip it over the battery, and apply heat (a hair dryer will do). The electronic cigarette skin will instantly shrink to the exact size of the battery.
Here you can read more detailed instructions.