Gopro float

I have a float i bought in China but it's diameter is a bit to big for my kids (age 3 & 6) to hold properly.

Designed this one with a smaller diameter of 30 mm for better grip for the kids.

Made the walls thin to get as much air inside as possible, and added a disc in the middle of the handle to stiffen it up.

The float has positive Buoyancy on my GoPro 3+ hero in its watertight housing, but not enough Buoyancy to float my Gopro Hero 5 black.

They weigh of both camera's is almost the