There's a funny Stop sign near my house that says "Hammertime" under it. It always makes me smile and remember when "U Can't Touch This" by MC Hammer was a huge hit. Apparently there are quite a few Stop signs with graffiti pertaining to song lyrics.
Welcome Girl Scouts, go away Door to Door Salesman! "Unless your selling Thin Mints, NO SOLICITING". This would be great for thehome front door on a small sign above the doorbell or on the glass door of a business.