Check out this card, isn't it cool? You can make one too, just follow this tutorial.
I brayered my background onto a piece of glossy card stock 5.5 x 12 inches. I had to use glossy as my Xerox paper is 8.5 x 11 inches. For the top, I used Adirondack Lights Cloudy Blue, Brights Raspberry and Earthtones Stonewashed. For the bottom, I used Adirondack Lights Aqua followed with Brights Pool. Then I stamped my images with Marvy Black ink.
Finished size of the card folded up is 4 x 5.5 inches. Check out Karen's blog for another great sample.