I tried my hand at calligraphy with watercolors today!
So the learning was two-fold: one, I discovered that I can make beautiful thank-you notes by painting them myself and pasting in another sheet of paper to the note like so:
Two, I learned a bit about how to hold the brush while making the strokes. I drew an outline with pencil from a photo of thank-you calligraphy I found online and half filled it in, half followed the motion of the brush. I'm quite pleased with the result. I definitely want to practice watercolor calligraphy in the future.