A non-card idea from England's Paul Gordon, and it's a goodie!
You now have a good reason for introducing this excellent prop. Manufactured to resemble pads of paper.
The sheets alternate: real paper, No-Tear paper etc., etc! So, you peel off 2 sheets... you use one and give the other to the spectator. Yours tears, theirs doesn't.
Wayne Dobson has contributed great ideas and routines to the instructions (included), as only he can. He's a great thinker and a great magician, who performs great magic.
Approx. 100 sheets (50 real / 50 non-tear) per pad. Cardboard backing, too. Great for children's magic, close-up & cabaret. Just watch the spectator try and tear this paper, which - by the way - is NOT the usual plastic-looking paper that some dealers sell. This is very authentic-looking.
Ideas include predictions in envelopes, "Do As I Do," and much more! Sold on the understanding that the paper is not infallable. A hardy spectator could (if persistent) tear it. VERY unlikely, though!