Apparently what’s bad for us can be good for our plants. For one – they thrive on cigarette ashes. French designer Frantz Brougere took this knowledge and put it in design use. His Cindy ashtray not only provides a free-standing place for cigarette butts, it also helps plants grow (monsieur Brougere wouldn’t be the first frenchman who defends smoking). The ashtray is easy on the eyes as well, it looks like an elegant planter. So, next time you send your guests outside with their cigs – let them grow some green.