A handlebar mount for your GoPro, meant to interface with all the standard GoPro accessory linkages. It is secured to the handlebar using two M3x14mm metric button head screws and two M3 nylocks (all found at any hardware store). I printed mine with a higher infill percentage using normal PLA and had no problems with the robustness of the mount (it even survived a crash). Printing in a more suited material (Nylon or NylonX) would most likely yield a mount with the robustness of a similar product off the shelf. I've included a .f3d file for the design as well as the .stp files in case you would like to mod the parts.