Harrisburg, Pennsylvania (CNN) -- Somewhere, somehow, someone tried to carry a tribal spear onto a commercial aircraft. Troy Thompson knows that not because he is privy to the nation's latest intelligence reports but because he works for Pennsylvania's Department of General Services, where objects discovered and surrendered at airport checkpoints are stored, sorted and resold to the public. The non-descript government building in Harrisburg, Pennsylvania, could be called the world's most unusual thrift store because of the odd assortment of stuff that ends up there. You'll find piles of hockey sticks and golf clubs, dozens of snow globes, enough rolling pins to equip a culinary school and so many pocketknives that they are sold by the pound. All of the items are prohibited on planes because they could be used as weapons or, in the case of snow globes, could contain liquid explosives.
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Passengers surrender 750,000 items annually at airport checkpoints, TSA says
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Many items are sold at a Pennsylvania warehouse and online
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Knives are the most common item surrendered; a horse whip is rather unusual
But more often than not, rushed travelers surrender the items -- or "voluntarily abandon" them, in @placeholder parlance -- to screeners.