I have found an easy way to make decent looking holograms is to purchase a reflective foil paper from a company called paper-direct and then print your holograms image using the foil overlay paper on a plain transparency sheet and then laminate over. The foil adheres to the transparency paper when you use a laserprinter to print out your image and when you look at it after whatever has been laminated it looks like a pretty good hologram. I can explain this further if anyone wants specifics.
B-$tring
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