I started doing this a while back. Wulf Barsch showed up to a class and noticed a case of Staedtler Lumograph pencils. "Did you know that these were created for the purpose of drawing on foil?" No I didn't know that. It was worth a try. It was only after writing in foil though that I began to take seriously the idea of making type from my handwriting—an idea I had kept for a long time. There comes with writing on foil a remarkable feeling of the medium pushing back; have you ever noticed that?