Today is the last day to enter to win pieces from Nikki Reed’s new jewelry collection, Mattlin Era! The Twilight Saga star teamed up with InStyle.com to give away this honeycomb-inspired set—including a necklace, earrings, and cuff—to five lucky readers. To win, head over to InStyle’s Facebook page—the Fans Only section—click “Like” to gain access—and answer the question: What would you wear this jewelry with? Leave your comment by Friday, October 12th at 10am EST. (U.S. residents only.) We’ll contact the winner via direct message. Good luck! For official rules, click here.