I was talking with a friend who seems to get lots of ideas lately, and this is one of them, about the Kbfx K-menu. He had a weird idea that might actually be interesting. A morphable button. What I mean is that you start with just a square, and you can pull on the sides, and change it's shape. (when unlocked or something like that, not to accidentally change it.) This could be only an add on or something, and most people wouldn't use it but it could be interesting for people who like to customize things in a way that no 2 machines are the same...
Open for criticism!