What do you do to while away a stormy, rainy day? Play with tea, of course :D
I tried different techniques on four sheets of paper. The first two were soaked and stretched, but the large board was very hard to maneuver, so I gave up on the stretching part. It didn't make much difference as the paper warped so much anyway!!!
I popped the paper back in the oven and scraped off the tea when it was thoroughly dry using a stiff bristle brush. The effects were random and to me, pleasing :D
This was the Bockingford paper.