Buzzbait has posted his custom GW-5600J project over in the WUS G-Shock forum. This beat up G-Shock got new life with the bezel from a DW-56RT Referee Timer, and the metal band from a GW-5600BCJ. The project resulted in three custom G-Shocks after all the parts were swapped around. The custom GW-5600J ended up turning out the best of the bunch.

Link

Custom GW-5600