Check out my version of a 360 spinning double camera mount.
- Buy a caster wheel at Home Depot
- Find a lightweight pole or bar
- remove wheel and attach pole with a zip tie
- attach cameras to pole
- attach contraption to helmet with small coarse screws
You will want to unit to rip off your head if it were to catch on something. So make it easy to break. (not your neck)
My unit weighed only 3 pounds.