We are selling them in Romania, no legal issues. Here even one can sell legally marijuana substitues called Spice.
I've tried the spice too but it is far from the illegal stuff: the taste is the same, you don't get high, and you'll get the usual hangover.
e-cigarette site: http://smuff.ro spice site: http://espice.ro/
Which email address on those sites is yours?
Unfortunately, in the USA it's basically impossible to sell anything other than tobacco rolled into convenient smokable units, even if it's otherwise Generally Recognized as Safe by the FDA, because nothing you smoke is on the FDA GRAS list. Tobacco is grandfathered into legality.
Is this your site? (no, it's not his site, this submission should be flagged to death)