FIG. 1 is a perspective view of a fastener for portable electronic device showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is another perspective view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a right side view thereof;
FIG. 9 is a front view thereof, showing the fastener for portable electronic device coupling with a smart phone;
FIG. 10 is a rear view thereof, showing the fastener for portable electronic device in use with a smart phone;
FIG. 11 is a rear view thereof, showing the fastener for portable electronic device in use with another smart phone of smaller size;
FIG. 12 is a perspective view thereof, showing all of the mounting clips in closed position; and,
FIG. 13 is a reduced rear view thereof, showing the fastener for portable electronic device in use with a neck lanyard and a smart phone.
The broken lines in the drawings represent unclaimed environmental subject matter that forms no part of the claimed design.