Cold War business idea, half a century too late: manufacture a cheap, unremarkable substance and sell it at an extremely high price to the U.S. government, to confuse Soviet intelligence. Shroud the production in secrecy and compartmentalize knowledge of the manufacturing process, so that everybody involved in production thinks that in a different section of the plant something secret is being done to create an end product that is special and useful in some way, but in reality you're creating exactly the cheap, boring stuff you say you are. The government could drive truckloads of it into nuclear weapons production facilities, shuffle it around from one warehouse to another, and eventually relabel it as waste.