What devices are today’s alleged drug couriers using to smuggle cocaine into the United States? Based on an arrest last week by U.S. Customs and Border Protection at Dulles International Airport last week, shampoo bottles are probably not the best canisters.

Customs officials at Dulles last Friday arrested Guatemalan courier Eric Eduardo Estacuy Juarez after inspecting his suspicious toiletries and finding a white powder that allegedly tested positive for cocaine. The Washington Post reports that Estacuy Juarez, 39, was arriving in the United States via Panama and was subjected to a secondary examination that is customary for international couriers.

That’s when CBP officers spotted the suspicious shampoo bottles that allegedly were constructed with double walls. According to court documents, officers cut one of the bottles open and found what appeared to be a white powdery substance wrapped in cellophane that allegedly field-tested positive for the presence of cocaine.

According to an affidavit signed by a customs officer, Estacuy Juarez told authorities he picked up the shampoo bottles from a friend in Guatemala and inspected them by dipping a stick in them. The dipsticks came up coated with a shampoo-like substance and nothing else, Estacuy Juarez said, according to the affidavit. But he also admitted to authorities that he falsified the paper manifest of goods he was bringing into the United States.

Customs officers took possession of 911 grams—about two pounds—of a powdery substance that tested positive for cocaine, with a street value of about $60,000.

So add shampoo bottles to the list of failed international drug transport devices. Previously, customs officials at Dulles found parcels of cocaine in shipments of honey and cream, stew, chocolate bars, and clams.