In completing a DIY project of chalk painting an old secretary, I decided on a black and white background. I choose the Avignon Peel and stick Backsplash, not expressly used for a secretary but I tried it anyway.
I was pleased with the look, however, the Avignon really sticks! Once you peel off the backing you better be sure you align it correctly because it is extremely difficult to remove should there be an alignment issue. I would probably go with a removable wallpaper should you wish to change it. Use for a real backsplash is probably more ideal.