cheap and simple solution to keep the handheld hd cam together.
Less than a sheet of kydex.
If you heat a 1/4 sheet of kydex and wear leather gloves, you can wrap the kydex around the bottom of the camera.
There are a lot of places that sell kydex by the sq foot sheet for hobby knife makers and the likes.
If you can make a kydex pouch that will just cover the bottom section of the camera that it can slide into, that may be enough to keep the halves together and strengthen the camera body at the same time.
I suppose for that matter, wrapping it in tape may would accomplish the same thing.
Just anything to keep the halves together.