ZoneBrat

Hello *S* My husband and I bought an Atari 2600 off Ebay today to replace the systems we both had growing up. We have been trying to find a tiny controller he loved to use and haven't had any luck. It is about palm sized , black in color with a red button on each side, and a red joystick (protruding from a dome like shape) on it only had about a 1 inch shaft. We have searched high and low , up and down Ebay and can't find it. He isn't sure if it is made my Atari to start with but he used it with his 2600 system. Any help would be greatly appreciated Thanks!