In a Montreal mall I found this incredible machine. It was like an automatic picture machine, you sit, it takes the picture, but instead of four photos, it gives you a hologram of your face in an acrylic cube. Look:
On top of it, it's got a blue LED, so you can see it well. I thought it was incredible. It's not a real hologram, but somehow they manage to draw inside the plastic and make 3D portraits. Unbelievable.