Decorative case for an MP3 player device

FIG. 1 is a perspective view of the decorative case for an MP3 player device showing my new design;

FIG. 2 is front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof, the left side view thereof being a mirror image;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view of the decorative case illustrating in phantom optional lights and edges visible beneath the front surface of the decorative case; and,

FIG. 8 is a front view thereof.

The broken line showing of environment in the drawings is included for the purpose of illustrating only and forms no part of the claimed design.