Ultimate Pocket Challenge: Can You Guess the Last Thing to Go In?

Ultimate Pocket Challenge: Can You Guess the Last Thing to Go In? - EIGHTBALL
Last thing to go in a pocket, one hopes

Pocket item played in a game
Black and round
Part of a pool set
Numbered from one to fifteen
Often associated with a bar or pool hall
Sometimes used for fortune telling
Related to a “break shot”
Commonly featured in movies and TV shows about pool.

EIGHTBALL