My nephew got an iDog Amp’d for Christmas. It’as a cute little desktop toy/speaker that moves and lights up with the song. I like it so much I went looking on the internet and found several iAnimals; penguin, cat, puppy, fish, and dog. I got an iCat on clearance and an iDog (not Amp’ed). For $15 each, it’s a cute, cheap desktop distraction.
I’m not swapping out batteries. There should be someway to run it off of USB or a leftover brick.