Make your own
Google Cardboard is a basic kit that turns your smartphone into a pair of low-end virtual reality goggles.
Made from cardboard, plastic lenses and a magnet, the goggles can be replicated at home.
To make your own, download and print the template from Google and follow the step-by-step instructions.
Want it already assembled?
Some options from third-party makers:
DodoCase - from $24.95
I Am Cardboard - from $19.99
Knox Labs - from $14.95
Unofficial Cardboard - from $14.95
Apps for Cardboard
Here are a few of the best:
The official Google Cardboard app comes pre-loaded with demos like a tour of Versailles, the ability to examine exhibits from every angle, and an interactive animated short film. Only available for Android devices.
Explore thousands of colleges. Just load the site on your phone, pop it into your headset, and away you go. Available for iOS and Android devices.
Watch a Jack White concert in virtual reality. Made by the same people behind the Paul McCartney virtual reality concert.
Only available for Android devices.
A wide variety of virtual reality experiences that work with or without VR goggles. Available for both iOS and Android devices.