Motorola V551 / V330 / V547 / V555 / V557
exchangeable face plate
There are companies out there that have made faceplates that might fit on the 551. You will just have to look around.
There are 4 screws hidden under 4 rubber stoppers on the inside of the faceplate (where the LCD is). Just pry those out and unscrew to get the faceplate off.