Kathy Buszkiewicz of Cleveland, OH makes these amazing jewelry pieces out of U.S. Currency and Wood! She says:
Value is placed upon the power of crafting worthless materials into beautiful objects. The color & designs of U.S. currency symbolically link it with fertility cycles. The green money and decorative motifs are inexhaustibly of vegetation. It speaks to us of our ability to be fruitful in the world.
Want to talk about cost for materials? The first piece listed above, 6080, $1,850, is made of 304 $20 bills!