They are black and white. The box will have to be big enough to fit them plus some packing material, but I wouldn't image it being very much. These signs weigh probably less than a pound. I'm guessing around $10 +/- a few bucks.
Well, those went fast......my wife picked these up from a local vendors market that's only open on the weekends. I'll run over there this weekend and see if the guy has anymore.......