deerslayer
Milforum Swamp Dweller
actually, through reflexology it is possible to develop an arch in a flat foot. Here's something I picked up from my weight trainer/reflexologist/therapist/damn near anything else physical you can think of: Take a golf ball and put it under your foot, and while you're busy watching TV or whatever, roll the golfball around under your foot. You're stimulating a huge number of pressure points there, and while his bones are still mildly malleable, it is possible that repeated sesssions of this can create an arch in the foot.