QuickerTek is shipping carry handles (http://www.quickertek.com/products/macbook_air_carry_handle.php) for all models of the Apple Unibody MacBook (aluminum and white) and MacBook Pro Unibody 13-inch, 15-inch and 17-inch laptops.
The carry handles are made from non-flex aircraft quality aluminum for strength and are priced at US$79.95. The handle is built with captive screws and attaches with a bracket mount that uses the existing screw holes on the back of the computer.
The design lays the handle out and the bracket elevates the MacBook, MacBook Pro or MacBook Air to allow better airflow underneath the laptop.