Participating Shell gas stations in 1992 were handing out foil packets to customers who made purchases, containing either a Presidential token or an instant=win token. The Presidential tokens all had information about one of the U.S. Presidents, as well as their portrait. All of them were made of Brass. The instant-win tokens were made from nickel-silver and were redeemable for a $50,000 gold bar. Honestly, it was an insane marketing game.