Partial success with two ferrite cores
 

If I use two ferrite cores on the microphone lead it seems that perhaps there is not all that much clicking until I stroke the camera. Here is a swf file
http://yueigo.epc.yamaguchi-u.ac.jp/...whenrubbed.swf

There are no clicks at all when I use the dynamic microphone. There is a bit of high pitched interference, but I think that I could cope with it. The trouble is that the microphone is so big. Together with the cable it is considerably bitter than the camera.
http://yueigo.epc.yamaguchi-u.ac.jp/temp/dynamic.swf

I tried it again with the plug in power microphone. It only has a few clicks with the two ferrite corse on it. All the same, I am not sure I would be able to use it in earnest. It only takes one large click to make a clip pretty useless.

Grr...

Tim