Re: Disney complaining about others ripping them off?
Using different light wavelengths may work, as may a coating of oil, soot, or an suitable evaporation chamber coating (like the anti-reflective coating for glasses). It may not even matter if the original is damaged/disfigured by the surface treatment.
For 3D printed goods, there may need to be tag finding/removing post processing, because some goods may have a on-off tag code to identify which 'original' copies were made from!
Biting the hand that feeds IT
