How to make a VR headset using easily available lens at home [Brainergiser]

This is an easy to make VR headset. You can use any easily available convex lens to make it at home. I have used toy binocular lens. If the focal length is low, like 35mm to 50mm then performance is good. However those are not easily available. So use lens from small magnifying glass or toy binocular. Those are having focal length of 100mm to 120mm. So the thickness of the VR headset will be approx. 0.9 x f = 90mm.
Make you own, and have the experience of 3D video at your fingertip. You will be very much exited with 360 degree videos available in YouTube.
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