F-color via Amazon offers its F-color Magnetic CD Slot Car Phone Holder with Arm in Black for $10.99. Coupon code "6A46WF22" drops that to $6.99. Plus, Prime members bag free shipping. That's $18 off, and the lowest price we could find. It features an adjustable swivel ball head that supports 360-degree rotation, and four high-powered magnets. Deal ends May 28.