The ornamental design for a drumstickgrip accessory, as shown and described.
FIG. 1 is a perspective view of a drumstick grip accessory showing my new design in an installed position on a drumstick;
FIG. 2 is a perspective view of the drumstick grip accessory;
FIG. 3 is a top view of the drumstick grip accessory, with the bottom and side views being a mirror image of;
FIG. 4 is a front end view of the drumstick grip accessory;
FIG. 5 is a rear end view of the drumstick grip accessory; and,
FIG. 6 is a cross-section view of the drumstick grip accessory, taken along line 6-6 in FIG. 5.
The broken line showing of the drumstick in FIG. 1 illustrates the environment of the claimed design and forms no part thereof. The broken lines shown in FIGS. 2-6 illustrate portions of the drumstick grip accessory and form no part of the claimed design.