SP Gadgets POV Dive Buoy - Floating Hand Grip Waterproof Underwater Selfie Stick Mount for GoPro
The multi-purpose camera handlegrip with added features. Aside from keeping your cam afloat if you drop it into water, you can fill the handle with water to create neutral buoyancy when scuba-diving. You might even want to use the watertight compartment to keep a little something hidden or dry.