Hey that bubbler looks very handy, but for $120? I wouldn't mind having a buddy blow one for me, but I'd have a hard time throwing some no name company $120 dollars when they are also selling single unit ego-w replacement 'tanks' (not even the whole cart assembly like d9) for $20.
Very cool find however Darb, as this type of bub would work on all pens, unlike a device specific 'nibbler' if you get where I'm at. Maybe somebody can blow some FC special edition pen bubs like these, I'd be more than willing to throw some $ at that.
Edit: I'm sure future CERA owners would love something like this too, as it seemed from the videos that using the CERA upside down on glass, works, but also leaves you with half your oil on the mouthpiece...