Arrival from China of turtles with painted shells causes US airport quandary
It was not immediately clear to Customs officials at Dulles International Airport whether the reptiles were admissible

Apparently it was not so much the art work itself that puzzled Customs inspectors at Dulles International Airport earlier this month, it was where the paint had been applied: to the shells of turtles.
According to US Customs and Border Protection, its inspectors “have seen some interesting things” in passenger baggage at Dulles, but the four baby turtles with the painted shells “was a new one”.
In a statement, Customs reported that a family of American citizens returning from China made a declaration at Dulles about the baby turtles with the painted backs.

Each of the turtles was covered by a painted design. It was not immediately obvious whether the reptiles were admissible, Customs said.
So the quartet was referred for agricultural assessment.