Hi, I've wanted for a long time to find a tool designed to safely open seized up fountain pens. Something similar to the rubber/handle device used to open jam jar lids? I end up breaking about 20% of pens trying to open them with fingers then leather wadded pliers, then god knows.. getting more and more reckless as my frustration builds! Hot water bath to soften the shellac seems to work only very rarely.. So if there is a tool out there for the job i'd really appreciate and advice on where to buy. Many thanks, Tom