To make this card you will need the Butterfly Brilliance stamp set and some Household bleach
Measurements: Very Vanilla Card Stock (CS) card base: 4 1/4 x 11 inches with a score line at 5 1/2 inches; Granny Apple Green CS: 4 x 5 1/4 inches; Pretty Peacock CS: 3 7/8 x 5 1/8 inches; and Very Vanilla CS: 1 inch strip.
Place about 4 paper towels in a standard stamp case and saturate with Household Bleach. Let the stamp sit in the bleach for about 10 seconds. Then pat the stamp on the bleach-soaked paper towel and place it on the 3 7/8 x 5 1/8 inch Pretty Peacock CS. Leave it sit for about 5 minutes to ensure that the bleach will soak into the paper. If you have too much bleach, let it sit for a shorter period of time.
Here is what the bleached Pretty Peacock CS looks like.
I used the "Thank You" sentiment from the Sweet Ice Cream stamp set and stamped it in Pretty Peacock ink onto the 1 inch Very Vanilla CS strip. Begin to assemble the card by adhering the bleached card piece to the 4 x 5 1/2 inch Granny Apple Green CS. Next adhere that piece to the 4 1/4 x 11 inch Very Vanilla CS card base. Add the "Thank You" sentiment to the card front.
Viola! That is all there is to it. Try different colors of cardstock and be surprised by the color left after bleaching. Lots of Fun!