Ultimate Airguitar?

[3o3]

Aye.

http://www.newscientist.com/article.ns?id=dn8383 <- there's even a video to show how things works.

Crazy finns

[Hollowcell]

Hehe, classic!

I don't have time for the video at the moment, but it's definitely on my to do list.

EDIT: I took a look at the video. Now that is a classic! It looks as if it would be a great work out too. :D