I have been watching this
thread and Tasdad - I love it! You hit the nail on the head with that one. You explain in one sign that while smoking is not allowed, e-smoking is. It uses visual colors and classic signage that people are used to looking for.
While all of the others make wonderful logos and t-shirts, this is one that a business owner could absolutely put in their front window and there would be no confusion once inside. Love it.
All other designers: Get your stuff out there too... all wonderful designs to get the word spread about e-smoking. There are some I can already imagine wearing or sticking to my bus!