I had bought ink tablets & inkwell at a Colonial fair, so we used those as a short cut instead of gathering nut shells to boil down into ink (hey, it was raining!) :) That was a good idea, it took a couple of tablets and W crushed them up in a bit of water, and after a few minutes we had our ink.
W and his feather pen
a Halloween themed ink picture
We used a feather than Grandma had found in MS, it may be a hawk feather. W soaked it in soapy water for a few minutes, then I cut the tip at an angle to better hold the ink. Both of the boys had fun making ink pictures and attempting to write with it.
That night to go along with our monk study, we made a lentil soup with vegetables similar to what monks would have eaten, with bread & cheese. It was satisfying on a cool autumn day.