This time, I constructed a pepper's pyramid with a sheet of acrylic (2mm) with holographic projection film on and placed the ipod on the top of the pyramid. I also tested the normal acrylic version again for a comparison. In conclusion, the effect appeared to be almost the same with or without the holographic projection film.
The forward pyramid: acrylic sheet with holographic projection sheet
The back pyramid: acrylic
As I placed the ipod on the top of the pyramid, I modified my previous sample images (flipped 180°) so it wouldn't be projected up-side-down.
Experiment 001: acrylic pyramid
Experiment 002: acrylic pyramid with holographic projection film ( the film placed inside the pyramid)
Yuri Endo 2012