My friend bought me some silk hankies - I thought they were actual hankerchiefs but they seem to be some wispy stuff. They didn't have any information with them, what is this stuff?
A hankie is made of one silk cocoon. A cocoon is carefully opened at one end and then stretched gently into a square. They are put on stretcher bars to dry and they can be dyed. You can use it for various surface embellishing techniques, spinning, needle felting, and making silk paper. Here's an article from Wormspit with photos on how they are made.
Have fun with them!