My friend Nico send me this article today. Customs officials at the Cincinnati/Northern Kentucky International Airport discovered 52 pounds of marijuana packed inside a concrete shell when they x-rayed a tombstone being shipped by DHL.
The customs officials were surprised, but I found it an interesting coincidence. Zinkers, which I have shown before, are hollow markers. You can see that this one at Woodland Cemetery has been damaged and is bulging slightly.
A lot of people will tell you that the hollow zinkers were used during Prohibition by bootleggers to conceal alcohol.