mousepad with key combinations for bash, zsh, emacs, vi, or gnome on a German PC keyboard?

Recently, I noticed that it's possible to order cheap mousepads with customer-provided images on it. As I don't wish to reinvent the wheel: Has anyone of you folks, perhaps, already done the job of constructing an image with a list or lists of the most useful or frequent default key bindings of bash, zsh, emacs, vi, or Gnome for a rectangular mousepad of size between 22 cm × 18 cm and 25 cm × 20 cm? The key combinations should work on a on a PC running Debian, if that matters. In the positive case: could you share not only the image but, ideally, also the original document?