Exovault of Brooklyn makes high-end iPhone cases. Their EXO16 Nickel Plated Aluminum Ebony Composite iPhone Case ($250) is elegant while being impact resistant. The case is made from a resin composite core, layered with an Ebony veneer and capped on the ends with Nickel-plated aluminum. The EX016 is held together with 4 stainless steel screws and comes with a screwdriver and additional screws. Because they use real wood veneers each case will be distinct. Check out a picture of the cases back after the break.
Marshall Phone Cases ($20) offer the look and feel of a classic Marshall amplifier. They feature a black soft-coated case with the Marshal logo emblazoned on the back and a vinyl wrapping that holds your phone securely in the case. The cases come in models for the iPhone 5s and the Samsung Galaxy S4.