1] Stamp image on card stock.
2] Stamp it again on a piece of scratch paper.
3] Cut carefully around the scratch paper image, cutting just inside the lines; this will be your mask.
4] Place the mask on top of the card stock image.
5] Stamp another image over a portion of the mask to create layered, interacting images.
6] Remove the mask to see the finished look.
7] To stamp a partial image, use tape to cover the part of the stamp you don't want to appear, ink the stamp, remove the tape, and stamp the image.