Meet the Magnet: a smartphone camera mount for guitars. You can use it to capture slow motion video of your guitar playing to identify how to improve your performance. Users can use it to film their guitar playing at speeds up to 240 frames per second. The Magnet mounts to your guitar fast. Just snap the jaws, attach your phone, and you are ready to capture your performance.
The Magnet offers dual-axis expandability. It can fit almost all six or seven-string guitars. There is a GoPro adapter available for it too. You can find it on Kickstarter.