The Double Sided Canadian Quarter also comes with the instructions for the "None of Three" magic trick.
Here's how it works...you and another person each throw a set amount of money into a pot. The other person shakes 3 coins together in their fist. Asked to pick heads or tails, they pick heads. The coins are then thrown on the table. If three heads show up, they win; if three tails shows up, you win. If there is a mix of heads and tails, nobody wins and each party again throws more money into the pot. This back and forth continues until somebody wins.
The Outcome: You win 100% of the time!!!