@NinaHilliard we've made this one and it's super easy! We have a giant white wall we watch movies on with this projector!!! It works great outdoors too!! We stream our movies from our computer to our phone through VLC.
Who said you can’t have your own hologram? Now it’s possible for you to enjoy one by transforming your smartphone into a 3D hologram projector! See video and full written instructions here: http://gwyl.io/create-your-very-own-hologram-projector/