While cute and imaginative, I would like it even more if we had Calvin and Hobbes somewhere on the keyboard.
As would I, but I'd hazard a guess that OP is trying to avoid any issues since Bill Watterson never licensed C&H for any commercial use.
It would be really cool to have the function row populated with different C&H characters like his parents, Susie Derkins, the Babysitter, Spaceman Spiff, tiger Calvin, etc.