I had never heard of this technique before and certainly never made a card using this technique on the background, until it became a challenge on the Canadian Die Cut Exchange.
Once I saw what it was all about, I just had to try it out.
I found the demonstration of this technique very well done in this video
Stamps: Awesomely Artistically, Butterfly Basics
Ink: Sahara Sand
Papers: Very Vanilla, Crumb Cake, Pacific Point
Accessories: 3/8" Very Vanilla lace trim, dimensionals