Concrete floor stain. I stained my concrete front porch using iron sulfate powder (50 lbs. for $16) diluted in water (1-2 lbs. per gallon). It took 3-4 coats to get the effect that I wanted. I sealed it with a water based concrete sealer.
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.
cement symbols, set of six, ampersand, question mark, pound symbol, asterisk, at symbol, dollar sign,. $12,00, via Etsy.