Possible ATCs

I found a piece of fabric I made a couple of years ago in a workshop. I disliked the technique as it was presented because the final piece was literally as stiff as a board, but the surface is really interesting.


I decided that it might be useful for ATCs so I attacked it with the rotary cutter (and an old blade).


Now I have to decide if the bits need any further embellishment, what I am going to use for a backing and how I am going to attach that and how to finish the edges. I suspect it will be impossible to sew - will glue be the solution?