Supplies for this technique are:
Bleach - any kind
solid or silhouette stamps
dye ink - any brand name - I've used Gina K Designs, Hero Arts and Momento
applicators or small brushes
The application of bleach changes the color of the dye ink. Be careful not to splash or drip where you don't want it -- it might mess up your stamping. Here are two of the finished cards:
The solid images I used are Maple Leaf Silhouette and Large Balloon Silhouette. The sentiments are Happy Birthday from the Quartet Compliments and Happy Birthday from....
Hope you give this technique a try - it's easy and lots of fun.