Hacking an inexpensive Japanese rollerball pen to accept waterproof #RohrerUndKlingner “Lotte” ink so I can apply #watercolor wash to sketches without bleeding. After the first ink swap it’s still not totally waterproof but I’m using it. I think by the second swap it’ll work better.

Obviously the key to this is avoiding getting black ink all over the place.

#watercolour #HypodermicSyringe #PenAndInk