yes I have... I hate the "coin" cards... always thought they were too much of a hassle.. the coins NEVER stay in the card... and always seem to turn upside down!
I can't tell what it is made out of though. Not magnetic, so not steel. Doesn't have the markings for a Nickel-Copper clad on the ring(the part you can roll a coin on) doesn't show a mix....hmmmmm interesting