I been thinking about a chop cup routine done to the song "Lime in the Coconut". You could use a half coconut shell for the cup and small limes for the balls.
Instead of the illusion of placing the ball in the pocket, you would swirl the lime in the coconut and then act like you drink the resulting mixture and make the lime disappear.
The rhythm of the routine could follow the rhythm of the song.
Maybe the last load could be an alarm clock or small phone; for "call me in the morning" part of the song.