There’s a reason why the markers, deodorant, buttons and nail polish in Tomas Sykora’s suitcase weighed so much - they were filled with cocaine

U.S. Customs and Border Protection agents found cocaine packed into these markers, deodorants, nail polish and bags of buttons when they checked the luggage of Tomas Sykora of the Netherlands at Kennedy Airport on May 8.

There’s a reason why the markers, deodorant, buttons and nail polish in Tomas Sykora’s suitcase weighed so much - they were filled with cocaine, federal authorities said Monday.

Sykora, 26, a resident of the Netherlands, was busted at Kennedy Airport last Tuesday and accused of importation of a controlled substance.

His black suitcase was pulled for inspection during a transfer from Haiti to Brussels.

The officer from U.S. Customs and Border Protection opened the suitcase and “immediately noticed a strong smell emanating from the bag,” according to court papers.

At the same time, said CBP spokesman Anthony Bucci, Sykora showed “some traits of nervousness.”

With good reason.

Inside the bag were 16 markers, 17 roll-on deodorants, 24 nail polish bottles and 684 buttons - all containing cocaine, the feds said.

All told, according to CBP, nearly 16 pounds of cocaine were recovered.

His court-appointed lawyer, Heidi Cesare, said Sykora is a native of the Czech Republic but she would not comment on the charges against him.

Sykora is being held without bail on a detention order at the Metropolitan Detention Center in Sunset Park, Brooklyn.

Robert Perez, director of New York field operations for CBP, said the arrest shows the agency’s “steadfastness in stemming the flow of these dangerous drugs.”