Okay, sorry, had connection problems earlier. Yes, Gale, Adam's apple was part of it. Danger got another BIG part. (They aren't strings/cords.)
If no one gets it after this, shame.
They are not housed in a piece of fruit. -- that lump in your throat called your Adam's apple is not actually an apple but the anterior portion of the thyroid cartilage, part of your larynx, which does house these things.
They are not strings. -- though they were called vocal cords (and sometimes still are), they aren't shaped like cords or violin strings and they don't function the same way either; they're more like lips than anything else I can think of.
They are not false. -- you have a pair of false ones. I want the true ones.
They have no hands, but they wave and slap each other around a lot... when they *cough* venturi too close for comfort, as Bernoulli could have told you. -- when you close them just tightly enough and try to force air through them, from your lungs and up your trachea, the air eventually pushes them apart, starting at the bottom. It flows through the space between them, the glottis, which is narrower than the trachea. The velocity of the air flow increases as it passes through the glottis, which is accompanied by a decrease in its pressure, causing a partial vacuum, which pulls them closed again, starting at the bottom. This cycle, a mucosal wave, repeats and is an example of the Venturi Effect (which happens, e.g. in a Venturi tube) and is described by Bernoulli's Law. Or something like that; physics isn't my thing, and I really need to get it straighter, but it's just a game.
You do normally blow or suck wind through them though. -- When you breathe, speak, cough, etc.
They are your VOCAL ______.
How about a backwards clue?
Yes, you're thinking too hard. Nothing is hidden in the clues -- you can take them at face value. 