A fun one. It looks like two dollars joined but it's actually just one.

Difficulty : Beginner
Number of Bills : 1
Denomination Recommended : 1$
Any bill will do but the 1$ is nice as you can see Pyramid and Eagle on each heart.
Credits : Originally found somewhere on the net. Credit on PDF shows as Stephen Weiss inspired by Kaela Ross.

Diagram [PDF]

Front
Heart - Double 01-01
Angle
Heart - Double 01-02
Backside
Heart - Double 01-03