Here is another link.
http://www.southernstylecutgear.com/#!product/prd1/1436089631/gopro-cut-collar
The one I saw that Jessica and Joey had had a small steel cable run thru the go pro. It had a little hole or something on the corner I think. That cable went thru the D ring behind the camera mount. U can see the ring in the pics.
Shotgun
Arkansas