Simple GoPro accessory I designed to hold a small mic off to the side of your GoPro. You can use a Zoom H1 (http://amzn.to/2gVX6fb) if the field of view is set on Narrow or you can use a Rode VideoMicro Compact Mic (http://amzn.to/2znURrK) with the GoPro still set to Wide.
Original idea came from this: https://www.bhphotovideo.com/c/product/1151225-REG/polsen\_gpmk\_22\_gopro\_stereo\_shotgun\_mic\_kit.html
The author marked this model as their own original creation. Imported from Thingiverse.