Here are some post Christmas suggestions for action camera accessories
StrapMount - GoPro BackPack/Scuba Mount
polarpro strapmount backpack / lifevest / scuba mount for gopro hero5 - Walmart.com
Review: Polar Pro Strap Mount - Singletracks Mountain Bike News
PolarPro Traverse - Strap Mount Camera Harness / SYNTEX.TV
Action Camera Quick Release Mount | Ulanzi Quick Release Mount Gopro - Gp-16 Action - Aliexpress
Buy PolarPro Filters StrapMount GoPro Backpack/Scuba/LifeVest Mount Online at Low Price in India | Polar Pro Filters Camera Reviews & Ratings - Amazon.in