Adding to our ever-popular range of whisky water droppers.. The Shamrock Whiskey Water Dropper is adorned with a pewter shamrock crest. Do you need the luck ‘O the Irish?. This glass pipette is approximately 200mm length and is presented in a luxurious velvet-lined box.. Why should you add water to your whisky? Well, the simple answer is why not! but experts say that allowing a couple of drops into the whisky especially if cask strength, opens up the flavours and allows a truly memorable drinking experience.