Classical music isn't to everyone's taste, but who hasn't waved their hands about like a conductor before? iPhone app TikTakt lets you do that, but by shaking the iPod to control music from the likes of Mozart and Beethoven.
The conductor looks like a Mii, but behind him there's a "small orchestra that performs according to your conducting". That's a licence to kill right there. While only four songs are available from the start, you can download more through the app, which costs $5. [iTunes via AppsPlayground]