With an ever-increasing collective interest in sustainability and environmental consciousness, upcycling and reporposing common household products has elevated itself to an art form. In particular, classic Mason jars — Ball and Kerr brands, in particular — have become the darling of the movement. So, we’ve rounded up ten retro-modern mason jar lights in a series of unorthodox but fetching modern lighting ideas. Some are easy enough to do on your own, while others might require a quick click on the “buy” button in an Etsy shop or two. In any event, here’s yet another option for lighting up your life in an eco-friendly way.