Blow tube Communicator, like in the movies.
You know, Captain on the bridge of a fast frigate, calling the engine room, picks up some sort of flexible tube, blows through it, then "Full speed ahead, we're going to ram that sub", etc. Except in my case, "Bring me a Guiness".
Questions:
What are those things called ?
How do they work ?
How can I make one ?
Where do I buy one ?
Etc.,
PS. For those who don't understand, if it's electrical, then it's not what I'm talking about.
You know, Captain on the bridge of a fast frigate, calling the engine room, picks up some sort of flexible tube, blows through it, then "Full speed ahead, we're going to ram that sub", etc. Except in my case, "Bring me a Guiness".
Questions:
What are those things called ?
How do they work ?
How can I make one ?
Where do I buy one ?
Etc.,
PS. For those who don't understand, if it's electrical, then it's not what I'm talking about.