(Harpo Marx played Pinky in "Duck Soup") But this was another Pinky:

PINKY DONOHOO’S PLAYERS POKER CLUB
906 NORTH VENTURA AVENUE [MONICA DONOHOO]
VENTURA, CA
1960 -
H&C
NO OTHER INFORMATION

I'd guess any chip from the Players Club would suffice? Never saw one with Pinky's name on it.