My previous post talked about making a Denny screen to use with this technique. It took us about an hour to make the screen mixed in with talking, laughing and drinking coffee.
There was a wonderful assortment of crayons, oil sticks etc to do the rubbings with. Whatever you use should be water soluble. The Portfolio brand oil sticks were my favorite as they were soft and rubbed onto the fabric easily and added lots of color.
A fun day.