How to make a hologram projector using your phone or tablet? Turn your smartphone into a 3D hologram. It is very easy to do - you will need a transparent plastic bottle. Cut the top of the plastic bottle as shown in this youtube video. Then open a youtube app on your smartphone or tablet and search for "hologram video". Start the video in a fullscreen mode and put the plastic bottle top on the screen of your phone or tablet. Don't forget to turn off the lights. And you will see an amazing 3D image as the picture reflects in the plastic and creates 3d hologram. Enjoy this simple DIY and amaze your friends. Subscribe to our channel and feel free to share this video in social networks.