I used a sheet of 12 x 12 patterned paper, with the patterned side facing down. Then, I glued all my playing cards on to of the paper. This way I had a nice backing on my soon to be altered cards.
After giving the cards a very light sanding,I proceeded to gesso the substrate I am using (the glued down cards) and then once that was dry, I continued to decorate it by using some acrylic paints, stencils, stamps and really, anything I felt like doing at the time...lol..Once the backgrounds were dry, I cut the cards out individually and ended up with 45 altered background cards.
My process for the background can be seen on my you tube channel here:
Once I had completed all the backgrounds, I then went through my box of bit'n'pieces to find some images I could glue down for some added interest. I also found quite a few Inspirational quotes on the net and printed them out. The last stage was for me to paste down an image with a quote and the end result can be seen below.....my altered deck of cards, ready for swapping.
Below is my video showing the finished altered deck of cards