These were given out between August 15th, 2005 to September 15th, 2005. You got one of these for free for every sack of 10 burgers/cheeseburgers you ordered at White Castle. Inside there are games and activities as well as a coupon. The coupon is good for 12 Mad magazines (the regular issues that come out once a month) for $12, plus a bonus spy vs spy poster.