Castro's $10 Demand

In 1940, a 14-year-old Fidel Castro wrote a letter to U.S. President Franklin D. Roosevelt asking “If you like, give me a ten dollars bill green American, in the letter, because never, I have not seen a ten dollars bill green American and I would like to have one of them” [sic]. He did receive a letter thanking his “letter of support and congratulations,” but Castro was annoyed that no cash was included.