The Yu-Gi-Oh trading card game released some collectible tin boxes that don't come empty. The players will be happy to learn that these tins contain, each, 5 booster packs.
However, this is not what makes these tins special. The art on the tin's lid, in this case Tempest - Dragon Ruler of Storms, can also be found on one of the cards included. This is because the tin contains a couple of extra cards in addition to the booster packs.
Depending on where in the world you bought one of these tins, the contents might differ. However, the bottom of the box will list all the special cards included. Of course, this doesn't apply to the contents of the booster packs.