Writing instrument cover

FIG. 1 is a perspective view showing our new design for a writing instrument cover;

FIG. 2 is a front view showing the design of FIG. 1 ;

FIG. 3 is a rear view showing the design of FIG. 1 ;

FIG. 4 is a left side view showing the design of FIG. 1 ;

FIG. 5 is a right side view showing the design of FIG. 1 ;

FIG. 6 is a top view showing the design of FIG. 1 ;

FIG. 7 is a bottom view showing the design of FIG. 1 ;

FIG. 8 is a side view showing the design of FIG. 1 with the cap removed from the writing end thereof; and,

FIG. 9 is a side view showing the design of FIG. 1 with the cap positioned on the end opposite the writing end thereof.

In FIGS. 1 to 9 , the broken lines represent portions of the article that form no part of the claimed design.