You'll also need an aqua painter, a bold image stamp, a watercolor crayon and a container to mix the paint in, I'm using an old brad container. You'll need a few shavings from your watercolor crayon. Use a sharpener to sharpen it and you have the perfect shavings, put them in your container.
To the brad container your going to add a few drops of water. Start with 1 or 2, you can always add more later. Add a few drops of the shimmer paint too. You'll want more of this. Mix everything together to make a 'paint'. The watercolor crayon will breakdown and color your paint. Isn't is cool!!?? On your stamp, use your watercolor crayon and color the stamp.
Then use a paint brush or sponge to apply the paint to the stamp.
Stamp it on your paper.
Make sure you let it dry completely, before doing anything else. If it's a 2 step stamp, stamp the next layer. The shimmer will shine through. Attach it to your card and you're done!