I dunno, honestly, I think I'd like a whole set of NES, 8-bit style covers for Mega Man 1-10. Just line them up and admire them.
I was working on it at one point. I hit a bit of a snag because I can't vector, but the style was not like the original boxes, but styled after Nintendo NES games, like Super Mario Bros., where most of the box was black and there was a window with a sprite image. I have designs for Mega Man 1-7, and was considering doing Mega Man Soccer and Mega Man & Bass.
If I ever get around to finishing them, I'll look into maybe doing MM8 and on.