CineShark have an $89 GoPro cage coming out. OK you say, what of it. Well the $89 cage is designed to hold the GoPro Hero, 1, 2, or 3 in its waterproof housing while still allowing you to quickly snap it in and out using the standard GoPro clip system.
So if you need a compact roll cage for your GoPro, this is it! This GoPro exo-skeleton provides 1/4″-20 and 3/8″-18 mounting points on all four sides. A 1/2″-13 is also included for threading a standard 15mm male threaded rod straight into the cage. All threads are designed so you cannot thread a screw through too far and damage your camera.
The cage is machined from a single piece of aircraft grade aluminum and hard anodized with a mil-spec type III black finish. This will stand up to about anything you throw at it. Custom colors are also available upon request in type II anodizing.
See CineShark for when their GoPro cage comes out.