Q. What industry makes the most use of glitter sheets in its products?

Answer

Here are the industries that mostly use glitter sheets:Cars and Trucks: If the car sector is the most likely hypothesis why would anyone want to keep it a secret? They utilize glitter in their paint which is already rather visible.Not the Funeral Industry: Two weeks later bringing in a family for the first sight on their grandfather a war veteran and the glitter particles just vacuumed have adapted and become airborne.Military Secrets: Probably the military who use chaff to shield airplanes from missiles by reflecting a large amount of light and radar. If anything must meet all three requirements (a) secrecy (b) not appearing like glitter and (c) " able to see something" then this passes muster.