Meritline offers the Wicked Metal Jacket Alloy Case for iPhone 4 / 4S, model no. WMJ1341, in Silver for $29.99. Coupon code "MLC416PN" cuts it to $9.99. With free shipping, that's the lowest total price we could find by $11. This case features clear screen and aluminum body panels that are joined together with four screws. Coupon expires after 100 uses.