Do you have repressed artistic desires? Do you like to send oddball gifts to the folks back home? Or do you want to get even with the mailman that you suspect is reading your magazines?
If the answer to any of those questions is yes, you might be interested to know that you can mail a coconut anywhere in the world by simply affixing the appropriate postage on it, no special packing required.
One of the many activity opportunities available through the concierge at Kauai Beach Villas is a coconut painting session. For $5, the Pahio folks provide the coconut, the paint, and the supervision (it's not babysitting, but it's probably adequate for 10 and over). Assuming that a parent is present, it's great for the little ones as well.
The idea is that you paint whatever design you'd like (okay... perhaps a tiny bit of discretion should be observed) on the coconut, then spray it with a clear protectant. You can then tape an address label on it, take it to the post office (there's one just a mile or so from the resort), have them weigh it, and pay the postage.
And that revenge on the mailman? On your last day on Kauai, mail a coconut to each of your neighbors back home. Then wait for the day that they get delivered. Now that's mean!