These Calico Jack cufflinks were also hand-polished to perfection, so you can easily spot the skull and crossbones from across a room.  These Calico Jack Cufflinks feature is the logo of one of the most notorious pirates of all time. This set of White Calico Jack Pirate cufflinks are made in enamel on a nickel plated backing. The logo of one of the most notorious pirates of all time the calico jack pirate cufflinks are made in enamel on a nickel plated backing. These Calico Jack cufflinks were also hand-polished to perfection, so you can easily spot the skull and crossbones from across a room. Don’t be afraid to let your inner pirate out. (Eye patch not included!) Presentation box included. Cufflink size: 3/4” diameter.