Mount your GoPro however you want to with this GoPro grab bag of mounts. It gives you two mounting choices and a three-way pivot arm to mount your camera to any helmet and record at multiple angles. Tools for installation are included in this GoPro grab bag of mounts, making it simple to take shots from a variety of angles.
If you're a heavy user of your GoPro like me, you'll likely notice that several of these little bits will disappear over time. The good news is that GoPro is constantly updating the design of these bits to make them more durable (though they can't do anything to make them less "lose-able.")