F-color via Amazon offers its F-color Air Vent Magnetic Car Mount Phone Holder for $8.99. Coupon code "UI4PRC3O" cuts it to $6.99. With free shipping for Prime members, that's tied with last month's mention, $2 off, and the lowest price we could find. It fits most cellphones and features one-handed operation and 360-degree rotation. Deal ends December 10.