Kraft paper is a nice alternative for card making, stamping and coloring then white or cream cardstock and can give you a totally different look, I think it has a more vintage feel. The Copic Marker Europe blog has tips on coloring on Kraft paper using alcohol markers and using a white color pencil and white gel pen to add highlights and the result is simply stunning. Click here to visit their blog for lots of photos and information on getting results like these when coloring your stamped image on Kraft paper.
-Heather
I would caution others to NOT use Copic markers over colored pencil. It ruins your markers. In the tutorial she shows coloring with the markers after using the white pencil. This is not recommended.