These handsome cuff links are actually metal shank buttons we had engraved. You can also sew the fancy buttons in place of plain ones on a shirt or jacket.

How to Make It
A pair of buttons and jump rings (at jewelry-supply stores) makes one link. 

With needlenose pliers, open a jump ring and slip it into a button; close the ring with pliers. Repeat with other button, but before closing it, link it to the ring on the first button. 

Buttons, Tender Buttons, 212-758-7004. Engraving, Academy Engraving.