Octoconut - Random Undersea Trivia
 

Octopuses have been discovered tip-toeing with coconut-shell halves suctioned to their undersides, then reassembling the halves and disappearing inside for protection or deception

http://news.nationalgeographic.com/n...-carrying.html

you can't stop evolution,

The coconut-carrying behavior makes the veined octopus the newest member of the elite club of tool-using animals—and the first member without a backbone, researchers say.

That's awesome, once it gets going it looks like a Russian moon lander!