How to turn your smartphone into a hologram projector

You probably never thought that your old CD cases might come in so handy. However with some common household items, you can actually turn your smartphone into a hologram projector. This video by Mrwhosetheboss shows how you can make your own hologram projector for your smartphone. All you need is a pair of scissors, a pen, a graph paper, a CD case, a utility knife and a tape. Enjoy!