Electronic cigarettes; electronic smoking vaporizers, namely, electronic cigarettes; smokeless cigarette vaporizer pipes; electronic cigarette refill cartridges sold empty; cartomizers, namely, combination electronic cigarette refill cartridges sold empty and atomizers, sold as a component of electronic cigarettes; cartridges sold filled with chemical flavorings in liquid form for electronic cigarettes; cartridges sold filled with propylene glycol for electronic cigarettes; cartridges sold filled with vegetable glycerin for electronic cigarettes; chemical flavorings in liquid form used to refill electronic cigarette cartridges; electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; electronic cigarette liquid (e-liquid) comprised of propylene glycol; electronic cigarette liquid (e-liquid) comprised of vegetable glycerin; tobacco substitutes in liquid solution form other than for medical purposes for electronic cigarettes; liquid nicotine solutions for use in electronic cigarettes, namely, liquid nicotine used to refill electronic cigarettes, electronic smoking vaporizers and smokeless cigarette vaporizer pipes; cartridges sold filled with liquid nicotine for electronic cigarettes, electronic smoking vaporizers and smokeless cigarette vaporizer pipes