I made two cards with the same technique. I stamped the oak tree from Lovely As a Tree with bleach - once on Close to Cocoa and once on Gable Green. Both of the trees turned white, which I thought was rather boring. So, I heated them with a heat gun until they actually started to scorch a little bit and turned brown. I love the way they turned out.
This one is on DP from DCWV Summer Matstack. I sponged the edges with Creamy Caramel. The leaves are punched from Gable Green with a Tonic punch and sponged with Close to Cocoa. The three on the right are mounted on Pop Dot pieces. The sentiment is from Stampendous.