TechMatte via Amazon offers the TechMatte MagGrip Universal Air Vent Smartphone Mount in Black for $8.99. Coupon code "ITQU3C2L" cuts it to $5.99. Plus, Prime members receive free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it adds $6.01.) That's the lowest total price we could find by $5. It includes the magnetic air vent mount, as well as an additional magnet to place inside your device's case.