Did you have a Viewmaster? I did, great fun. Well now there are a lot of 3D experiences you can have with your iPhone like, for example I bought a Google cardboard (a cardboard virtual reality viewer for you iPhone - hint: it's shit, cardboard 2,3 or later should be much better).
So how does Viemaster compete with other VR iPhone products? Like this… (I found myself saying "that's pretty neat", so I had to share). I think Viewmaster have done a great job in preserving the old Viewmaster experience in a modern format…
If you want to introduce you kids to VR then this new Viewmaster for iPhone looks like great fun!
(um works with Android too)