The name of the book I am talking about is " ART INSPIRATIONS" BY Judith Baker Montano. i go it for a silly price on Amazon. The author has some beautiful waistcoats made using this tecnique.
Here is one I made for a book cover as yet unfinished until I get some more time. I used gold thread and a herringbone stitch on my machine and just stitched on top of the blocks. However if you are going to use them for a quilt they would need to be stitched first. Lot of work but looks really special.