It wasn't as easy as just snipping them out, though. I painted the back with this cool metallic blue paint that I got when I was painting set pieces for a community production of Alice and Wonderland. I fell in love with the shade, but I haven't had cause to use it since.
The tiny cards were printed on cardstock (or photo paper) and I coated the front with white Elmer's glue. That gave it more of a playing card feeling between my fingers, if that makes sense.
I'm not the best cutter in the world, so I tried to cut it with a boxcutter and a ruler. Big mistake. It ended up tearing up the paint on the back (I'll do touchups eventually). I switched to scissors and I didn't do half badly! This is Van Gogh playing Solitaire (okay, so my hands are too shaky today for setting up tiny things, but I made them, and that's the important bit!) Happy arting!