For business cards of private detective Y. Shorohov we prepared a congreve plate. An image is "developped" like a photo by a client himself with the means of pencil or by the means of a special staff used to lift fingerprints. An information about our PI can be revealed to the needed extent. PI gives the client a business card is no causes the painted. Client's of the PI are involved in a little investigation. We can also make an Easter egg. Read Less