Small jeweled charm on a gold chain that marks a town's mayor and vanishes when the office is transferred.
Ferdinand wears a gold chain around his neck with a small jeweled charm hanging from it when he arrives at the Desperado Club. The charm is the token of his office as Mayor of Shanty Town.
Carl identifies its function while laying out his offer: transferring the mayorship to the crawlers means the jewel on Ferdinand's necklace will go away. The cat accepts, and the accepted Trade Request moves the office - and with it the charm - away from Team Retribution.
A small jeweled charm hanging from a gold chain worn around Ferdinand's neck.
Physical proof of a mayorship, which disappears the moment the town changes hands.