Hi,

I've made a simple Gopro handle for my Gopro camera.
I have printed it with Colorfabb_HT black, which is very stiff and strong. Thus very suitable for these kind of things.
The handle is hollow to save on weight and filament.
Maybe I'll upload a closed version so it will float.

To see the finished design, look at the digital drawings.
The photos in my Ultimaker are a prototype. I've altered the hinge part so it fits better and is a bit more sturdier.