I used to make fake IDs that reused both the plastic backing and the hologram layer from a real license. I spent some time creating a template in Photoshop that I ink-jetted onto photo paper. The final result was very close to the real thing in all aspects: look, thickness, weight, “bendyness”, real hologram, and light transmission (i.e. the bouncer shining a flashlight through the back of the ID would see what he expected to see. A bit of translucency)

I never got around to modifying the data on mag stripe. I just dragged a hard-drive magnet over it until it didn’t scan at all.

My takeaway from all that? The hologram that was used to strengthen the official IDs had an unintended side effect of making the fakes easier to believe.