Performer removes a credit card from his pocket and freely displays it along with a plastic folder. He borrows a dollar or other denomination bill and places it inside the folder with the ends of the bill projecting on both sides of the folder so it is visible at all times.
Magician then pushes the credit card completely through the bill and out from top of the folder!
The bill is returned to its owner who can examine it thoroughly.
It is totally unharmed!
Note: The credit card is constructed from cardboard and not plastic.