Need help with STD magnets

I went to Michael's to get the materials needed to make the magnet STDs. I asked the woman where I can get the supplies but she had no idea what I was talking about. The only thing they had was full 8 1/2 X 11 sheets of magnetic paper. Now this would work, but that means I would have to cut them into the appropriate STD magnet size. Does anyone know an easier way to do this??? Are there magnet kits??? HELP!!!

I did my own STD magnets, and I purchased the magnets (business card sized) at Office Max. I believe for 50 of them, it was $22.99... I ordered business cards off of a website which I designed myself ($14.99 for 100) and put them together

I got the 8x11 glossy paper (w/ perforations that are business card size) and the magnets w/ sticky back from staples. We wanted a thicker magnet, so we decided not to get the magnets that you can print right on.

I got the card to put the magnets in at Michaels.