At my quilt group tonight we had a mini workshop with Alison Muir who had learnt a technique at a Wendy Lugg workshop and adapted it to her style. I love the way quilters share.
Basically you use what we call contact paper - sort of sticky paper used for shelf & drawer liners - as a resist and then print/stamp/paint over it.
These are my two pieces. It was a lot of fun and I think I will be playing more with this technique.