Memorex Mi1003-BLK Speaker System for iPod (Black)
I did not want to pay $200 for a device to play my nanopod.  That kind of money used to get me a good component stero.  I've used this item on my boat all summer.  And it works fine.  Not high fidelity but for low cost it is great.  Considering it is in a marine enviroment, I'm surprized it still works.