Plusinno via Amazon offers the Ginmic 3D Curved Surface Aluminum Bumper Case for iPhone 6 in Gold for $17.99. Coupon code "FUM47MJS" drops it to $6.99. Plus, Amazon Prime members bag free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, it costs $6.19.) That's $31 under list price and the lowest total price we could find. It's CNC-machined from aircraft-grade aluminum and features internal sponge shock protection and matched buttons.