Elegance & Elephants: Natural Fabric Dyeing with Tumeric & Coffee (note: I've used coffee before, even on polyester, it worked out well. It was a lot lighter that I thought it would be, and a lot prettier)
Naturally Dyeing Yarn with Black Walnuts, a Fiberartsy.com tutorial
An online Montessori resource tool for teachers and parents, with videos and articles that illustrate Montessori classrooms and best practices. Produced by the Association Montessori International/USA.
As with quill pens in the days before manufacturing, ink could be made at home with items found nearby. Use berries or nuts to make inks for quill pens.