An ashtray full of cigarette butts
An ashtray
An ashtray was a small dish used to catch ashes from a burning cigarette tip and to discard used butts.
Dixon Hill's desk had an ashtray on it. (TNG: "The Big Goodbye")
In the holographic recreation of the Bourbon Street Barn, the tables was set with ashtrays. (TNG: "11001001")
The observation room at the United States Army Air Forces military base had an ashtray on a table next to a rotary telephone. (DS9: "Little Green Men")
During a pottery-making session on the USS Cerritos in 2381, Shaxs made an ashtray for his incense shaped like a puppy. (LD: "wej Duj")
On Dannus V in 3189, Carl was using an ashtray while smoking his cigar. (DIS: "Terra Firma, Part 1")