Enter the ‘Mars Play your Part and Win’ Instant Win Contest! Follow the link, click on the ‘Activate Your Pin Now’ button and register. After registration you can enter a PIN code from inside specially marked participating Mars Candy products. You can instantly win 1 of 1,305,900 Mars Bar FPCs! Also with each entry a $5 contribution to Habitat for Humanity Canada will be activated. Pretty cool! eh? Contest ends December 31, 2013.