Archer Daniels Midland ( ADM) may not just be the supermarket to the world; it may also become the gas station to the world, Jim Cramer said on "Mad Money" Monday evening. Cramer was talking about a research report by Citibank's David Driscoll that said ADM is considering investing in production capacity to produce corn-based plastics. This is just the thing that Archer Daniels has needed to jump-start its stock price, said Cramer. "We can make plastic out of corn. We should make plastic out of corn, and we will make plastic out of corn. You must own the stock of Archer Daniels Midland." A caller wanted to know, after years of hype, how long it would it take for corn-based products like ethanol to become viable in the marketplace. Cramer said with oil at $60, "the market is saying the time is now." Another caller wanted to know what energy play is the safest at this point. Cramer said natural gas was the safest play; it should play catch-up to oil.