I have a goPro Hero 5 Black I use for my YouTube Videos
I mostly use the "Chesty"Harness, but have recently made a couple custom mounts using various materials to give different camera angles next year when we are softwater fishing again.

Here is my channel

https://www.youtube.com/channel/UC-p...hmyuewPTpt3CqQ

If you do a search there is a lot of guys who have posted various home made mounts, one I found pretty interesting was a guy made all of his using 1/2"PVC pipe