A couple of guys at Swordfish 2010, a convention in Sweden for historical European martial arts, duct-taped a camera to the end of a sword and see if it would stay put while they did some tricks with it.

Luckily, they taped the camera on well enough that it didn't budge, and the resulting swordtip's-POV video is totally awesome.

Check it out as they keep kicking things up a notch and realizing that they can move pretty fast without the camera going anywhere.