If you purchased your copy of Super Mario 3D World + Bowser's Fury from EB Games, or you're thinking about doing so, you'll be able to walk away with a nice collectible. While supplies last, you can snag one of the above coins!
Obviously the coin isn't gold, but it is metal. You don't even need to have a pre-order to get one. You can just be a walk-in customer and you should get one of these along with your purchase.