Just filled three pens and have to get this out of my system:#FountainPen ink can stain just about everything, so selling it in the right packaging is important. Sadly though, ink manufacturers use their packaging as a way to stand out in the crowd, which leads to some interesting but user-unfriendly bottles. Two examples: the dangerous rolling of Endless Alchemy ink bottles, and the squat Herbin ink bottles that are too short to easily fill a converter. Thanks... rant over.