Painted wood floor: fill in any large gouges or scrapes, and sand the entire floor lightly. you can use nearly any paint on the floor, but if you're concerned about it rubbing off with traffic, talk to the people in the paint store/department. you can also get clear acrylic sealer to paint over the floor once it's dried and once cured, it'll protect the paint job.
hmm...maybe if i just painted a rug like this on part of my floor in the kitchen? (floors by Merrilee McCommas McGehee via Katie Maennle).
Funky Coastal Kitchen ~ A black-and-white faux bois treatment looks almost too pretty to walk on. The hand-painted pattern takes the traditional wood floors from standard to striking. A clear coat of varnish on the mahogany countertops produces a nautical look that wears well.