Well, that is a good idea, but, given the fact that an e-cig takes a million times as much power as a rolex watch, you should have to move a lot.a perpetual motion e-cig! Like Rolex watches
Or, it should be supported by some other personal renewable energy sources:
- clothes made of solar cells,
- a hat having wind turbines on the top,
- underware producing bioenergy,
and shoes with buit-in batteries for energy storage purposes.
I think it could be a viable idea.