A small adapter plate to convert a quarter-turn mount to 2-pronged GoPro. There are plenty of models to convert to a 3-pronged GoPro mount, but I struggled to find one to go to the other side of the GoPro mount.
Note that there are two versions of this model, as Garmin Varia lights have their mount rotated 90 degrees relative to the normal Garmin mount.
This version has the quarter-turn mount designed by El Manu included in the print. There is also an alternative version that accepts a ready-made quarter turn mount plate that you can buy cheaply from EBay/Amazon/AliExpress.
The author remixed this model.
Added a 2-pronged Go-Pro mount to the other side of the raw Garmin mount