The area I have designated for doing my nails also happens to be my sewing table, and sitting there next to my machine was a roll of magnetic strip with a sticky back. I use it to stick pins in as I'm sewing. So I cut a small square off and found that it worked pretty nicely even though the magnet is quite a bit thicker than the ones used in the tutorial. I cut up some pieces and peeled off the back
I then arranged them on a piece of paper and taped them down for added security.
It's not very pretty, but since it's just a test run I figured this is no time to be a perfectionist. I tried it out with one of my favorite magnetic polishes, Cop An Attitude from Finger Paints.
The end result isn't nearly as nice as the tutorial, but I see some more DIY magnet making in my future.