Love the pen case!

I usually put my fountain pens into a ziplock bag when traveling on planes. I've never had a leak, but figure it's possible and I get stained enough in regular life.

(Such as when I was once having tense meeting with a colleague and was flicking my fountain pen (uncapped to take notes) and it ended up spewing dark blue ink--across the table, my hands, my face... thankfully not her!)