Sterling Silver Napkin Hooks Single Double. A selection of 925 sterling silver Napkin hook which are to hold your Napkin in position to prevent spillage onto your clothes or ties. All the silver napkin hooks/Clips are manufactured in the UK and are available in various designs. plain, with feature hallmarks, with knife and fork motif, McIntosh rose design, Crown design, Masonic motif ( see Masonic Gifts). Some Silver Napkin Hooks are also available on a chain. Please note only the plain round napkin hooks can be engraved with initial.