Forget those fancy machines, this little attachment turns your iPod into a party sensation. Griffin's iKaraoke allows you to sing along wherever you are, you just need an iPod and a sound system to broadcast your tunes. Connect it up and you're all set with a microphone and your library of tunes to choose from. What's nice is that you can plug it into your stereo with a line-in cable or broadcast it over the radio with its built in FM tuner. Available here for $49.99.