Little video camera mounted on helmet.
I have used this camera before and it gives real good results BUT it,s a pain to turn on and to get pointing in the right direction so I knocked this bracket up to keep it in the same place each time. [ Have to remove it to turn it on :'(]
This camera [ 16g card ] will store 6hrs of good video and sound and acts like a flash card , just plug into usb and drag n drop.