At Borrow Lenses, rent any item for three days with the rental starting December 22 and coupon code "FREEWEEK14" grants another 11 rental days for free. (You can choose the rental start date during checkout.) That's the best rental extension we've seen from Borrow Lenses, where you can borrow lighting, microphones, tripods, and lenses for Canon, Nikon, Sony, and Micro 4/3 camera. Coupon ends December 24.