OMG! It's Robo-Shark!
This is really awesome.
I'm going to say it up front: this remote-controlled hammerhead shark does not serve any useful purpose whatsoever. It's only two feet long, so it's not very scary. It can only be controlled from up to 50 feet away, so it's not like you could really hide from it. And it can only dive in up to 8 feet of water.
So, basically, it's a glorified pool toy.
Nevertheless, I think this is awesome. I mean, a remote-controlled shark that swims around? And his eyes light up! And at $80, he only costs as much as an iPod Shuffle! Folks, sometimes you don't need a reason.
But I still wish he had a laser beam on his head.