Okay, just watched the video - the above links are for clamps with standard light fixtures.

But thinking about it, there are plenty of flashes out there with mini phono-plug connections (what was used in the video - and on another note they tend to be fairly cheap to buy). Would it be possible to attach $100 mic setup with a phono-plug, set your camera on bulb and do the same thing?

I have no idea if this would work - just wondering out loud...
-Lew ;-)