Mark Wagner creates some stunning illustrations, using only cut up dollar bills. On his website he states:
STATEMENT ON COLLAGE WITH CURRENCY
The one dollar bill is the most ubiquitous piece of paper in America. Collage asks the question: what might be done to make it something else? It is a ripe material: intaglio printed on sturdy linen stock, covered in decorative filigree, and steeped in symbolism and concept. Blade and glue transform it-reproducing the effects of tapestries, paints, engravings, mosaics, and computers-striving for something bizarre, beautiful, or unbelievable... the foreign in the familiar.
You can view more of his work at his website.