Difficulty : Beginner
Number of Bills : 1
Denomination Recommended : 1$
Any will do but the seals on the back of the 1$ probably look best.
Credits : Originally found at this Money Origami site.

The back side looks a bit sloppy. Some of these have been sitting around a while and aren't as crisp as they used to be.


Diagram [PDF]

Front
Butterfly 01-01
Angle
Butterfly 01-02
Backside
Butterfly 01-03