It would be difficult to imagine a more perfect magic trick. A bill of any denomination is borrowed from a spectator.
 
The bill can be initialed (it can even be a piece of ordinary paper). It is slipped into the MIRAGE case, and the ends o the borrowed bill remain in full view at all the time. A plastic blade is then unmistakably pushed through the borrowed bill. No funny movements, no sleight of hand. The blade is simply pushed all the way through and the bill is removed. Absolutely unharmed !

If you want to fool someone badly, perform Mirage. It has no explanation. And it is totally self-working. The perfect penetration.
 
Condition Notes: No original packaging. Blades show some surface scratches and scuffs from prior use, but they remain fully functional.