Jantzen does offer cuff style 6S, which is a convertible cuff similar to what Paul Smith often uses on its barrel cuff shirts. Specifically, a button hole on both ends of the cuff, and a single button positioned just nest to one of the button holes to close the cuff without links.
Hopefully Ricky won't mind me pasting this image here if I also plug his site www.jantzentailor.com
Speaking of cufflinks, does anyone know of a good online source for simple, reasonably priced cufflinks that DON'T have that ugly little rotating flapper thing on one end? Montecristo