Here is another clever controller designed to take your VR games to the next level. KupVR brings your hands and fingers into virtual words, so you can get a more realistic experience. The Kup-Controllers track the movements of your fingers and rotation of your hand while the Kup-Belt tracks the position of your hands and the orientation of your body.
This open source VR controller offers full finger tracking and gesture recognition. It supports non-VR applications too.