The magician displays four Queens and four Kings and his lucky coin. The spectator shuffles the Queens and the Kings. She selects a King and a Queen, a completely free selection. When she holds the lucky coin the cards match, a marriage and conversely with no lucky coin the cards do not match. These Mental Marriages are uncanny magic.
For the climax, the spectator is given the lucky coin and a choice of two envelopes in which he can win a Million. First he opens the envelope not selected to show that it contains a $20 bill. The lucky envelope is opened in which is a check that states, "A Million Thanks."
Everything that you need to perform this effect is included. Four specially printed Phoenix backed Kings and four Queens, two special envelopes and illustrated instructions. Online tutorial also available.