This is a bit of a curiosity, an umbrella I drew on, for fun, but since I drew with a marker pen I've included it under inked work.

Naples was hit with an un-seasonal storm and we needed to buy cheap umbrellas from a street vendor. Cheap and too big to carry back home so, on a whim, I decided to draw a sketch, singular, on the brolly. But one thing led to another and I eventually covered the whole thing with a sort of condensed history of Captain Britain. I drew on the Umbrella while it was up/open. There was no way to do any rough drawing and the material quickly absorbed the ink so lines had to be drawn quickly, without hesitation, and with a very light touch because the material was so elastic/springy.