Funny you should mention this...
I wanted to try a version of scrying with cards as well, ( I always liked the idea of cards as a tool, but I also have had some success with scrying...)so here's what I did...
I bought me a blank deck of cards...shiny white with the plaid RWS design on the back,(8 bucks from US Games)
and I attempted a reading, laying out the cards just as I would if I were doing a normal reading with a regular spread.
Then I did the relaxation techniques I do before I attempt to scry, and when I opened my eyes, I looked at the cards as if I were looking at any other shiny scying surface.
The first and second times yeilded no real results...but the third attept, later in the week, brought several interesting images.
I wrote them down to interpret at a later date.
Sometimes, I see Tarot images, but mostly, it's a single picture, or combination of images on each card.
It has been a really neat experiment, and occassionally very accurate as well, although I have to admit, it works best when I'm tired!