Have a look at this. Another wonderful poem by Rafael Jesús González. In my humble opinion.
And I have been looking this morning at Coffee Painting Something different to try. I certainly make enough of the stuff! Maybe one could use it to get those Samuel Palmer browns?
Here, we make coffee by pouring hot water through a sock! I remember being horrified the first time I heard that. EWE! Fortunately, it's less of a sock, and more of a cloth bag. A simple, re-useable filter system.