_,---._
     \__--__/           //\ 
    /|,-  -.|          // |\
     | o) o |      /\U//\_|_\
     |  (   |     /  \C) \|  \
    _|      |_   /   \    \  /
 ,-' \'-__-'/ '-/    /     \/
      \\==//         / 
       \\//         /
        ()         /
        /\        /
                  |

An Airplane Carrier and a Submarine walk into a Bar...

A signal lamp (sometimes called an Aldis lamp, named after Arthur Cyril Webb Aldis who invented a widely used design) is a visual signaling device for optical communication (typically using Morse code) [From Wikipedia]
- by The Animator
animasci.com