Here's asmall piece I did in the class I'm taking at the Palos Verdes Art Center. Besides the Tyvek (which I taught the others) there's crackle paint - turquoise with copper and gold over. The class focuses on work on canvas but as I always say: canvas is a textile, so I did this piece on a bit of cotton, not stretched, backed by felt for stability. I may frame it to clean up the edges.My favorite item in the course at the moment is plaster cloth. Yes, it can be easily needled!