Thanks to Bear over at A Toy's Own Story for bringing to my attention The Ukulele Orchestra of Great Britain - I know, it sounds like a hideous idea, but they are wonderful - funny and sometimes rather profound - honestly. I'll never hear Wuthering Heights any other way now - listen and marvel for yourselves:
But I have to say that their version of Smells Like Teen Spirit is my absolute favourite:
Find out more about them on their website. You can hear clips, buy their CDs (yes really) and you might even be lucky enough to find they are playing a gig near you.