Flip the coin, and then flip it again immediately. This way, you'll always have a 50/50 chance of winning, and you'll be done in under 2 seconds.
Go to Subpage 3 for more tips!A highly experimental method of flipping a coin, involving a magnet, a pendulum, and a can of spray paint. Results not guaranteed. Not recommended.
Go to Subpage 4 for more unorthodox tips!