Making a VR (Google Cardboard) Headset with almost any kind of magnifying glass | by Lakshya A Agrawal | Medium
Overview | 3D Printed Wearable Video Goggles | Adafruit Learning System
How to Build Your Own VR Headset for Under $10 | Digital Trends
DIY 3D Virtual Reality Goggles (Overview)
Make your phone into a VR headset with Cardboard | WIRED UK
Amazon.com: Google Cardboard,2 Pack VR Headsets,DIY 3D Glasses Cardboard Box with Clear Optical Lens and Comfortable Head Strap for All 4-6 Inch Smartphones : Cell Phones & Accessories