In 2014, Google released Google Cardboard, a augmented virtual reality platform.
Google Cardboard headsets are built out of simple, low-cost components, primarily a cardboard.
Google has made the list of parts and assembly instructions freely available on their website, allowing people to assemble Cardboard themselves. The Google Cardboard is available on ebay for as low as $1.
If you want to turn your phone to a virtual headset then buy the kit or checkout this video and make yourself a virtual reality headset.