I signed up for a free Google cardboard, it was an offer from a VR porn company!
Here is what I get:
It's easy to assemble, just follow the instructions.
It quickly become a pair of cheap VR glasses.
Google cardboard app is a best shot for starting:
Discovery VR has quite a few VR videos to explore:
There are many other VR apps in the App Store, however I didn't find any other really good one.
PS: I didn't have chance to try VR porn yet. 😄