I would like to see wrist bands that are worn around the forearm be made. David Wright and Rafael Furcal are prime example of this. They color coordinate according to uniform too. Wright will wear his blue one if the Mets wear blue caps and the black one when they wear the black hats/blue brim.
Wright: http://image30.webshots.com/31/9/6/9/26159...11cSzHQV_fs.jpg
Furcal: http://losangeles.dodgers.mlb.com/images/2...12/2Qlyp5vX.jpg