I ordered 2 handlebar mounts for the hd 808 non-jumbos that arrived today.
The ebay deal is http://www.ebay.com/itm/220997565236#ht_1661wt_822
These were like $4/each but each arrived WITH a camera. The camera is a knockoff 808 that uses that new strange usb cable (not microusb) and it's upconverting 480p to 720p so the quality isn't nearly as crisp as the hd808 #16 but for $4 it's hard to beat.
Your mileage may vary...