My Halloween costume is going to have to play music on (my) demand. I have an iPod (2nd gen mini, if it matters) that I figured I could stick some tracks on to play at opportune moments. The problem is, I need this to be portable yet still be heard well in a crowded room. What's the best way to do this? I don't want to spend too much, but are there any really loud iPod speakers? I do have a speaker lying around somewhere that I pulled out of a broken electronic keyboard once upon a time, does anyone know of any simple amplifiers that would let me connect that to the iPod? Thanks for any help! The idea came to me kind of late in the game, but I think there's still time to pull it off.