Balanzza luggage scale

"The Balanzza is a small, 10 oz. device that you simply hook to the handle of the bag, then lift. You hear a beep and then you can read the weight. That's it. The Balanzza is accurate up to 100 lbs"

http://www.popgadget.net/2008/06/balanzza_luggag.php

http://www.balanzza.co.uk/