Bloody April: Yes, that paint is what you think it is
And it's beautiful! I am learning tons of new information through this series. Right now, I'm about halfway through Margot Adler's Drawing Down the Moon. In her resource section is an online journal called Metaformia, dedicated to menstruation & culture! More about Metaformia anon. Metaformia led me to Vanessa Tiegs, artist in many media. Her Menstrala series was created with her menstrual blood over a few years. Tiegs was inspired by the poet who edits Metaformia.