Answer: basicly it's a seashell capable of producing other sounds than that it's already making. Normally a seashell produces a resonance, hearable when you put a shell against your ear. The folk myth is that you can hear the ocean in a seashell. Now, we know that this is not true, but what would happen if you had a seashell that could actually produce sounds of the ocean?
To answer this question I build, what I like to call, an Auditory Augmented Seashell. So far I made two prototypes which I like to share with you. I am very interessted in what you think and what kind of wild ideas you have with this peculiar seashell!
-a small seashell
-a pair of earphones (maybe some old salvaged ones?)
-a hot glue gun or some ordinary glue
-some scissors or cutting pliers
We're first going to get rid of the earphone's housing as it is to big to fit in the seashell. Carefully use the cutting pliers to cut the housing away, be careful not to cut the wire! What you should finish with is just a small speaker that is still attached to the wires.
The second step is to cut one of the earphones off right were the cord starts separating. If you are using a salvaged earphone, make sure you don't cut the only working piece. You could also skip this step if you want a stereo seashell :P
Next, start tucking the small speaker in the seashell, it helps to use a strong magnet on the outside to really get that speaker as far in the seashell as it can go.
Apply glue to the earphone wire so that it doesn't come off.
Now surf to http://www.freesound.org/ connect your Auditory Augmented Seashell with your computer using the earphone jack, find a nice beach/ocean sound on the website, put the seashell against your ear and start relaxing! And of course, share it with others!